Home / 425,332,562.40-636,723,385.20-252,720,525.60

Finding the Fourth Proportional to 425,332,562.40, 636,723,385.20 and 252,720,525.60

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Solution

The fourth proportional to 425,332,562.40, 636,723,385.20 and 252,720,525.60 is: 378,322,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,332,562.40 : 636,723,385.20 = 252,720,525.60 : x
  2. Step 2: Convert to fraction form
    425,332,562.40/636,723,385.20 = 252,720,525.60/x
  3. Step 3: Cross multiply
    425,332,562.40x = 636,723,385.20 × 252,720,525.60
  4. Step 4: Simplify right side
    425,332,562.40x = 160,913,068,569,555,264
  5. Step 5: Solve for x
    x = 160,913,068,569,555,264/425,332,562.40
  6. Step 6: Final answer
    x = 378,322,947.25

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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.