Home / 1,087,992,065.70-1,631,988,098.55-784,149,531.30

Finding the Fourth Proportional to 1,087,992,065.70, 1,631,988,098.55 and 784,149,531.30

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Solution

The fourth proportional to 1,087,992,065.70, 1,631,988,098.55 and 784,149,531.30 is: 1,176,224,296.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,992,065.70 : 1,631,988,098.55 = 784,149,531.30 : x
  2. Step 2: Convert to fraction form
    1,087,992,065.70/1,631,988,098.55 = 784,149,531.30/x
  3. Step 3: Cross multiply
    1,087,992,065.70x = 1,631,988,098.55 × 784,149,531.30
  4. Step 4: Simplify right side
    1,087,992,065.70x = 1,279,722,702,565,160,704
  5. Step 5: Solve for x
    x = 1,279,722,702,565,160,704/1,087,992,065.70
  6. Step 6: Final answer
    x = 1,176,224,296.95

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.