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Finding the Fourth Proportional to 15,201,383.52, 20,978,248.68 and 8,674,883.04

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Solution

The fourth proportional to 15,201,383.52, 20,978,248.68 and 8,674,883.04 is: 11,971,532.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,201,383.52 : 20,978,248.68 = 8,674,883.04 : x
  2. Step 2: Convert to fraction form
    15,201,383.52/20,978,248.68 = 8,674,883.04/x
  3. Step 3: Cross multiply
    15,201,383.52x = 20,978,248.68 × 8,674,883.04
  4. Step 4: Simplify right side
    15,201,383.52x = 181,983,853,683,034.38
  5. Step 5: Solve for x
    x = 181,983,853,683,034.38/15,201,383.52
  6. Step 6: Final answer
    x = 11,971,532.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.