Home / 1,216,037,388.78-1,678,134,069.30-659,120,813.10

Finding the Fourth Proportional to 1,216,037,388.78, 1,678,134,069.30 and 659,120,813.10

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Solution

The fourth proportional to 1,216,037,388.78, 1,678,134,069.30 and 659,120,813.10 is: 909,588,062.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,037,388.78 : 1,678,134,069.30 = 659,120,813.10 : x
  2. Step 2: Convert to fraction form
    1,216,037,388.78/1,678,134,069.30 = 659,120,813.10/x
  3. Step 3: Cross multiply
    1,216,037,388.78x = 1,678,134,069.30 × 659,120,813.10
  4. Step 4: Simplify right side
    1,216,037,388.78x = 1,106,093,092,250,332,544
  5. Step 5: Solve for x
    x = 1,106,093,092,250,332,544/1,216,037,388.78
  6. Step 6: Final answer
    x = 909,588,062.39

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,216,037,389.78, 1,678,134,070.68 and 659,120,814.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.