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Finding the Fourth Proportional to 100,438,375.60, 150,703,897.83 and 45,867,690.10

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Solution

The fourth proportional to 100,438,375.60, 150,703,897.83 and 45,867,690.10 is: 68,822,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,438,375.60 : 150,703,897.83 = 45,867,690.10 : x
  2. Step 2: Convert to fraction form
    100,438,375.60/150,703,897.83 = 45,867,690.10/x
  3. Step 3: Cross multiply
    100,438,375.60x = 150,703,897.83 × 45,867,690.10
  4. Step 4: Simplify right side
    100,438,375.60x = 6,912,439,682,528,503
  5. Step 5: Solve for x
    x = 6,912,439,682,528,503/100,438,375.60
  6. Step 6: Final answer
    x = 68,822,694.92

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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.