Home / 21,161,276.43-29,202,864.09-15,853,566.85

Finding the Fourth Proportional to 21,161,276.43, 29,202,864.09 and 15,853,566.85

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Solution

The fourth proportional to 21,161,276.43, 29,202,864.09 and 15,853,566.85 is: 21,878,148.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161,276.43 : 29,202,864.09 = 15,853,566.85 : x
  2. Step 2: Convert to fraction form
    21,161,276.43/29,202,864.09 = 15,853,566.85/x
  3. Step 3: Cross multiply
    21,161,276.43x = 29,202,864.09 × 15,853,566.85
  4. Step 4: Simplify right side
    21,161,276.43x = 462,969,557,929,821.38
  5. Step 5: Solve for x
    x = 462,969,557,929,821.38/21,161,276.43
  6. Step 6: Final answer
    x = 21,878,148.96

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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.