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Finding the Fourth Proportional to 18,172,502.40, 27,235,598.40 and 9,656,918.40

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Solution

The fourth proportional to 18,172,502.40, 27,235,598.40 and 9,656,918.40 is: 14,473,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,502.40 : 27,235,598.40 = 9,656,918.40 : x
  2. Step 2: Convert to fraction form
    18,172,502.40/27,235,598.40 = 9,656,918.40/x
  3. Step 3: Cross multiply
    18,172,502.40x = 27,235,598.40 × 9,656,918.40
  4. Step 4: Simplify right side
    18,172,502.40x = 263,011,951,323,970.56
  5. Step 5: Solve for x
    x = 263,011,951,323,970.56/18,172,502.40
  6. Step 6: Final answer
    x = 14,473,072.86

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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.