Home / 28,053,020.64-38,712,787.92-15,663,304.56

Finding the Fourth Proportional to 28,053,020.64, 38,712,787.92 and 15,663,304.56

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Solution

The fourth proportional to 28,053,020.64, 38,712,787.92 and 15,663,304.56 is: 21,615,147.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053,020.64 : 38,712,787.92 = 15,663,304.56 : x
  2. Step 2: Convert to fraction form
    28,053,020.64/38,712,787.92 = 15,663,304.56/x
  3. Step 3: Cross multiply
    28,053,020.64x = 38,712,787.92 × 15,663,304.56
  4. Step 4: Simplify right side
    28,053,020.64x = 606,370,187,557,649
  5. Step 5: Solve for x
    x = 606,370,187,557,649/28,053,020.64
  6. Step 6: Final answer
    x = 21,615,147.81

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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.