Home / 120,523,996.86-180,679,838.31-47,791,900.14

Finding the Fourth Proportional to 120,523,996.86, 180,679,838.31 and 47,791,900.14

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Solution

The fourth proportional to 120,523,996.86, 180,679,838.31 and 47,791,900.14 is: 71,645,755.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,523,996.86 : 180,679,838.31 = 47,791,900.14 : x
  2. Step 2: Convert to fraction form
    120,523,996.86/180,679,838.31 = 47,791,900.14/x
  3. Step 3: Cross multiply
    120,523,996.86x = 180,679,838.31 × 47,791,900.14
  4. Step 4: Simplify right side
    120,523,996.86x = 8,635,032,789,822,867
  5. Step 5: Solve for x
    x = 8,635,032,789,822,867/120,523,996.86
  6. Step 6: Final answer
    x = 71,645,755.33

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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.