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Finding the Fourth Proportional to 123,992,815.80, 185,888,446.74 and 43,270,470.84

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Solution

The fourth proportional to 123,992,815.80, 185,888,446.74 and 43,270,470.84 is: 64,870,537.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,992,815.80 : 185,888,446.74 = 43,270,470.84 : x
  2. Step 2: Convert to fraction form
    123,992,815.80/185,888,446.74 = 43,270,470.84/x
  3. Step 3: Cross multiply
    123,992,815.80x = 185,888,446.74 × 43,270,470.84
  4. Step 4: Simplify right side
    123,992,815.80x = 8,043,480,614,156,064
  5. Step 5: Solve for x
    x = 8,043,480,614,156,064/123,992,815.80
  6. Step 6: Final answer
    x = 64,870,537.56

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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.