Home / 71,748,294.78-99,015,781.95-40,388,365.56

Finding the Fourth Proportional to 71,748,294.78, 99,015,781.95 and 40,388,365.56

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Solution

The fourth proportional to 71,748,294.78, 99,015,781.95 and 40,388,365.56 is: 55,737,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,748,294.78 : 99,015,781.95 = 40,388,365.56 : x
  2. Step 2: Convert to fraction form
    71,748,294.78/99,015,781.95 = 40,388,365.56/x
  3. Step 3: Cross multiply
    71,748,294.78x = 99,015,781.95 × 40,388,365.56
  4. Step 4: Simplify right side
    71,748,294.78x = 3,999,085,597,605,850
  5. Step 5: Solve for x
    x = 3,999,085,597,605,850/71,748,294.78
  6. Step 6: Final answer
    x = 55,737,709.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.