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Finding the Fourth Proportional to 18,602,562.72, 27,902,039.84 and 5,648,825.47

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Solution

The fourth proportional to 18,602,562.72, 27,902,039.84 and 5,648,825.47 is: 8,472,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602,562.72 : 27,902,039.84 = 5,648,825.47 : x
  2. Step 2: Convert to fraction form
    18,602,562.72/27,902,039.84 = 5,648,825.47/x
  3. Step 3: Cross multiply
    18,602,562.72x = 27,902,039.84 × 5,648,825.47
  4. Step 4: Simplify right side
    18,602,562.72x = 157,613,753,313,146.72
  5. Step 5: Solve for x
    x = 157,613,753,313,146.72/18,602,562.72
  6. Step 6: Final answer
    x = 8,472,690.33

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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.