Home / 99,836,166.20-149,782,242.90-42,355,974.20

Finding the Fourth Proportional to 99,836,166.20, 149,782,242.90 and 42,355,974.20

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Solution

The fourth proportional to 99,836,166.20, 149,782,242.90 and 42,355,974.20 is: 63,545,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,836,166.20 : 149,782,242.90 = 42,355,974.20 : x
  2. Step 2: Convert to fraction form
    99,836,166.20/149,782,242.90 = 42,355,974.20/x
  3. Step 3: Cross multiply
    99,836,166.20x = 149,782,242.90 × 42,355,974.20
  4. Step 4: Simplify right side
    99,836,166.20x = 6,344,172,815,890,534
  5. Step 5: Solve for x
    x = 6,344,172,815,890,534/99,836,166.20
  6. Step 6: Final answer
    x = 63,545,837.72

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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.