Home / 28,162,456.31-42,248,453.54-9,713,391.78

Finding the Fourth Proportional to 28,162,456.31, 42,248,453.54 and 9,713,391.78

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Solution

The fourth proportional to 28,162,456.31, 42,248,453.54 and 9,713,391.78 is: 14,571,732.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162,456.31 : 42,248,453.54 = 9,713,391.78 : x
  2. Step 2: Convert to fraction form
    28,162,456.31/42,248,453.54 = 9,713,391.78/x
  3. Step 3: Cross multiply
    28,162,456.31x = 42,248,453.54 × 9,713,391.78
  4. Step 4: Simplify right side
    28,162,456.31x = 410,375,781,284,580.88
  5. Step 5: Solve for x
    x = 410,375,781,284,580.88/28,162,456.31
  6. Step 6: Final answer
    x = 14,571,732.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.