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Finding the Fourth Proportional to 138,027,695.60, 206,865,708.60 and 73,362,479.60

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Solution

The fourth proportional to 138,027,695.60, 206,865,708.60 and 73,362,479.60 is: 109,950,262.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,027,695.60 : 206,865,708.60 = 73,362,479.60 : x
  2. Step 2: Convert to fraction form
    138,027,695.60/206,865,708.60 = 73,362,479.60/x
  3. Step 3: Cross multiply
    138,027,695.60x = 206,865,708.60 × 73,362,479.60
  4. Step 4: Simplify right side
    138,027,695.60x = 15,176,181,327,107,042
  5. Step 5: Solve for x
    x = 15,176,181,327,107,042/138,027,695.60
  6. Step 6: Final answer
    x = 109,950,262.24

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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.