Home / 15,445,082.25-21,238,630.79-13,404,348.81

Finding the Fourth Proportional to 15,445,082.25, 21,238,630.79 and 13,404,348.81

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Solution

The fourth proportional to 15,445,082.25, 21,238,630.79 and 13,404,348.81 is: 18,432,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445,082.25 : 21,238,630.79 = 13,404,348.81 : x
  2. Step 2: Convert to fraction form
    15,445,082.25/21,238,630.79 = 13,404,348.81/x
  3. Step 3: Cross multiply
    15,445,082.25x = 21,238,630.79 × 13,404,348.81
  4. Step 4: Simplify right side
    15,445,082.25x = 284,690,015,288,944.12
  5. Step 5: Solve for x
    x = 284,690,015,288,944.12/15,445,082.25
  6. Step 6: Final answer
    x = 18,432,405.26

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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.