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Finding the Fourth Proportional to 99,696,542.70, 149,544,814.05 and 45,948,830.70

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Solution

The fourth proportional to 99,696,542.70, 149,544,814.05 and 45,948,830.70 is: 68,923,246.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,696,542.70 : 149,544,814.05 = 45,948,830.70 : x
  2. Step 2: Convert to fraction form
    99,696,542.70/149,544,814.05 = 45,948,830.70/x
  3. Step 3: Cross multiply
    99,696,542.70x = 149,544,814.05 × 45,948,830.70
  4. Step 4: Simplify right side
    99,696,542.70x = 6,871,409,342,846,432
  5. Step 5: Solve for x
    x = 6,871,409,342,846,432/99,696,542.70
  6. Step 6: Final answer
    x = 68,923,246.05

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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.