Home / 101,315,519.10-139,815,535.89-54,905,772.90

Finding the Fourth Proportional to 101,315,519.10, 139,815,535.89 and 54,905,772.90

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Solution

The fourth proportional to 101,315,519.10, 139,815,535.89 and 54,905,772.90 is: 75,770,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,315,519.10 : 139,815,535.89 = 54,905,772.90 : x
  2. Step 2: Convert to fraction form
    101,315,519.10/139,815,535.89 = 54,905,772.90/x
  3. Step 3: Cross multiply
    101,315,519.10x = 139,815,535.89 × 54,905,772.90
  4. Step 4: Simplify right side
    101,315,519.10x = 7,676,680,061,468,138
  5. Step 5: Solve for x
    x = 7,676,680,061,468,138/101,315,519.10
  6. Step 6: Final answer
    x = 75,770,031.38

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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.