Home / 120,523,997.86-180,679,839.81-47,791,901.14

Finding the Fourth Proportional to 120,523,997.86, 180,679,839.81 and 47,791,901.14

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Solution

The fourth proportional to 120,523,997.86, 180,679,839.81 and 47,791,901.14 is: 71,645,756.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,523,997.86 : 180,679,839.81 = 47,791,901.14 : x
  2. Step 2: Convert to fraction form
    120,523,997.86/180,679,839.81 = 47,791,901.14/x
  3. Step 3: Cross multiply
    120,523,997.86x = 180,679,839.81 × 47,791,901.14
  4. Step 4: Simplify right side
    120,523,997.86x = 8,635,033,042,190,557
  5. Step 5: Solve for x
    x = 8,635,033,042,190,557/120,523,997.86
  6. Step 6: Final answer
    x = 71,645,756.82

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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.