Home / 79,791,972.40-119,741,102.70-36,638,963.20

Finding the Fourth Proportional to 79,791,972.40, 119,741,102.70 and 36,638,963.20

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Solution

The fourth proportional to 79,791,972.40, 119,741,102.70 and 36,638,963.20 is: 54,982,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,791,972.40 : 119,741,102.70 = 36,638,963.20 : x
  2. Step 2: Convert to fraction form
    79,791,972.40/119,741,102.70 = 36,638,963.20/x
  3. Step 3: Cross multiply
    79,791,972.40x = 119,741,102.70 × 36,638,963.20
  4. Step 4: Simplify right side
    79,791,972.40x = 4,387,189,855,352,721
  5. Step 5: Solve for x
    x = 4,387,189,855,352,721/79,791,972.40
  6. Step 6: Final answer
    x = 54,982,847.56

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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.