Home / 1,216,037,385.98-1,678,134,065.44-659,120,810.30

Finding the Fourth Proportional to 1,216,037,385.98, 1,678,134,065.44 and 659,120,810.30

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Solution

The fourth proportional to 1,216,037,385.98, 1,678,134,065.44 and 659,120,810.30 is: 909,588,058.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,037,385.98 : 1,678,134,065.44 = 659,120,810.30 : x
  2. Step 2: Convert to fraction form
    1,216,037,385.98/1,678,134,065.44 = 659,120,810.30/x
  3. Step 3: Cross multiply
    1,216,037,385.98x = 1,678,134,065.44 × 659,120,810.30
  4. Step 4: Simplify right side
    1,216,037,385.98x = 1,106,093,085,004,845,952
  5. Step 5: Solve for x
    x = 1,106,093,085,004,845,952/1,216,037,385.98
  6. Step 6: Final answer
    x = 909,588,058.52

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Double scale
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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.