Home / 649,542,235.20-974,313,352.80-442,917,974.40

Finding the Fourth Proportional to 649,542,235.20, 974,313,352.80 and 442,917,974.40

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Solution

The fourth proportional to 649,542,235.20, 974,313,352.80 and 442,917,974.40 is: 664,376,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,542,235.20 : 974,313,352.80 = 442,917,974.40 : x
  2. Step 2: Convert to fraction form
    649,542,235.20/974,313,352.80 = 442,917,974.40/x
  3. Step 3: Cross multiply
    649,542,235.20x = 974,313,352.80 × 442,917,974.40
  4. Step 4: Simplify right side
    649,542,235.20x = 431,540,896,653,048,512
  5. Step 5: Solve for x
    x = 431,540,896,653,048,512/649,542,235.20
  6. Step 6: Final answer
    x = 664,376,961.60

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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.