Home / 100,869,400.70-151,304,101.05-66,432,023.90

Finding the Fourth Proportional to 100,869,400.70, 151,304,101.05 and 66,432,023.90

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Solution

The fourth proportional to 100,869,400.70, 151,304,101.05 and 66,432,023.90 is: 99,648,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,869,400.70 : 151,304,101.05 = 66,432,023.90 : x
  2. Step 2: Convert to fraction form
    100,869,400.70/151,304,101.05 = 66,432,023.90/x
  3. Step 3: Cross multiply
    100,869,400.70x = 151,304,101.05 × 66,432,023.90
  4. Step 4: Simplify right side
    100,869,400.70x = 10,051,437,657,121,616
  5. Step 5: Solve for x
    x = 10,051,437,657,121,616/100,869,400.70
  6. Step 6: Final answer
    x = 99,648,035.85

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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.