Home / 1,216,037,384.98-1,678,134,064.06-659,120,809.30

Finding the Fourth Proportional to 1,216,037,384.98, 1,678,134,064.06 and 659,120,809.30

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Solution

The fourth proportional to 1,216,037,384.98, 1,678,134,064.06 and 659,120,809.30 is: 909,588,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,037,384.98 : 1,678,134,064.06 = 659,120,809.30 : x
  2. Step 2: Convert to fraction form
    1,216,037,384.98/1,678,134,064.06 = 659,120,809.30/x
  3. Step 3: Cross multiply
    1,216,037,384.98x = 1,678,134,064.06 × 659,120,809.30
  4. Step 4: Simplify right side
    1,216,037,384.98x = 1,106,093,082,413,720,832
  5. Step 5: Solve for x
    x = 1,106,093,082,413,720,832/1,216,037,384.98
  6. Step 6: Final answer
    x = 909,588,057.14

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Double scale
Find fourth proportional to 1,216,037,385.98, 1,678,134,065.44 and 659,120,810.30
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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.