Home / 28,151,426.61-38,850,569.56-15,761,411.64

Finding the Fourth Proportional to 28,151,426.61, 38,850,569.56 and 15,761,411.64

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Solution

The fourth proportional to 28,151,426.61, 38,850,569.56 and 15,761,411.64 is: 21,751,644.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151,426.61 : 38,850,569.56 = 15,761,411.64 : x
  2. Step 2: Convert to fraction form
    28,151,426.61/38,850,569.56 = 15,761,411.64/x
  3. Step 3: Cross multiply
    28,151,426.61x = 38,850,569.56 × 15,761,411.64
  4. Step 4: Simplify right side
    28,151,426.61x = 612,339,819,149,691.88
  5. Step 5: Solve for x
    x = 612,339,819,149,691.88/28,151,426.61
  6. Step 6: Final answer
    x = 21,751,644.34

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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.