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Finding the Fourth Proportional to 136,123,651.80, 204,185,477.70 and 45,247,240.80

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Solution

The fourth proportional to 136,123,651.80, 204,185,477.70 and 45,247,240.80 is: 67,870,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,123,651.80 : 204,185,477.70 = 45,247,240.80 : x
  2. Step 2: Convert to fraction form
    136,123,651.80/204,185,477.70 = 45,247,240.80/x
  3. Step 3: Cross multiply
    136,123,651.80x = 204,185,477.70 × 45,247,240.80
  4. Step 4: Simplify right side
    136,123,651.80x = 9,238,829,477,354,930
  5. Step 5: Solve for x
    x = 9,238,829,477,354,930/136,123,651.80
  6. Step 6: Final answer
    x = 67,870,861.20

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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.