Home / 72,123,200.76-108,197,398.32-31,732,635

Finding the Fourth Proportional to 72,123,200.76, 108,197,398.32 and 31,732,635

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Solution

The fourth proportional to 72,123,200.76, 108,197,398.32 and 31,732,635 is: 47,604,494.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,123,200.76 : 108,197,398.32 = 31,732,635 : x
  2. Step 2: Convert to fraction form
    72,123,200.76/108,197,398.32 = 31,732,635/x
  3. Step 3: Cross multiply
    72,123,200.76x = 108,197,398.32 × 31,732,635
  4. Step 4: Simplify right side
    72,123,200.76x = 3,433,388,548,838,173
  5. Step 5: Solve for x
    x = 3,433,388,548,838,173/72,123,200.76
  6. Step 6: Final answer
    x = 47,604,494.98

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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.