Home / 649,541,323.10-974,311,984.65-511,791,815.90

Finding the Fourth Proportional to 649,541,323.10, 974,311,984.65 and 511,791,815.90

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Solution

The fourth proportional to 649,541,323.10, 974,311,984.65 and 511,791,815.90 is: 767,687,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,541,323.10 : 974,311,984.65 = 511,791,815.90 : x
  2. Step 2: Convert to fraction form
    649,541,323.10/974,311,984.65 = 511,791,815.90/x
  3. Step 3: Cross multiply
    649,541,323.10x = 974,311,984.65 × 511,791,815.90
  4. Step 4: Simplify right side
    649,541,323.10x = 498,644,899,877,156,416
  5. Step 5: Solve for x
    x = 498,644,899,877,156,416/649,541,323.10
  6. Step 6: Final answer
    x = 767,687,723.85

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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.