Home / 12,398,642.31-18,580,301.30-9,134,509.95

Finding the Fourth Proportional to 12,398,642.31, 18,580,301.30 and 9,134,509.95

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Solution

The fourth proportional to 12,398,642.31, 18,580,301.30 and 9,134,509.95 is: 13,688,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398,642.31 : 18,580,301.30 = 9,134,509.95 : x
  2. Step 2: Convert to fraction form
    12,398,642.31/18,580,301.30 = 9,134,509.95/x
  3. Step 3: Cross multiply
    12,398,642.31x = 18,580,301.30 × 9,134,509.95
  4. Step 4: Simplify right side
    12,398,642.31x = 169,721,947,053,175.38
  5. Step 5: Solve for x
    x = 169,721,947,053,175.38/12,398,642.31
  6. Step 6: Final answer
    x = 13,688,752.59

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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.