Home / 20,862,663.17-28,792,198.72-11,573,228.26

Finding the Fourth Proportional to 20,862,663.17, 28,792,198.72 and 11,573,228.26

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Solution

The fourth proportional to 20,862,663.17, 28,792,198.72 and 11,573,228.26 is: 15,972,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,663.17 : 28,792,198.72 = 11,573,228.26 : x
  2. Step 2: Convert to fraction form
    20,862,663.17/28,792,198.72 = 11,573,228.26/x
  3. Step 3: Cross multiply
    20,862,663.17x = 28,792,198.72 × 11,573,228.26
  4. Step 4: Simplify right side
    20,862,663.17x = 333,218,687,893,839.81
  5. Step 5: Solve for x
    x = 333,218,687,893,839.81/20,862,663.17
  6. Step 6: Final answer
    x = 15,972,011.11

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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.