Home / 38,713,640.75-53,426,233.96-21,071,691.23

Finding the Fourth Proportional to 38,713,640.75, 53,426,233.96 and 21,071,691.23

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Solution

The fourth proportional to 38,713,640.75, 53,426,233.96 and 21,071,691.23 is: 29,079,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,713,640.75 : 53,426,233.96 = 21,071,691.23 : x
  2. Step 2: Convert to fraction form
    38,713,640.75/53,426,233.96 = 21,071,691.23/x
  3. Step 3: Cross multiply
    38,713,640.75x = 53,426,233.96 × 21,071,691.23
  4. Step 4: Simplify right side
    38,713,640.75x = 1,125,781,105,267,049.88
  5. Step 5: Solve for x
    x = 1,125,781,105,267,049.88/38,713,640.75
  6. Step 6: Final answer
    x = 29,079,701.20

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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.