Home / 13,101,658.40-18,080,046.38-7,141,116.57

Finding the Fourth Proportional to 13,101,658.40, 18,080,046.38 and 7,141,116.57

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Solution

The fourth proportional to 13,101,658.40, 18,080,046.38 and 7,141,116.57 is: 9,854,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101,658.40 : 18,080,046.38 = 7,141,116.57 : x
  2. Step 2: Convert to fraction form
    13,101,658.40/18,080,046.38 = 7,141,116.57/x
  3. Step 3: Cross multiply
    13,101,658.40x = 18,080,046.38 × 7,141,116.57
  4. Step 4: Simplify right side
    13,101,658.40x = 129,111,718,790,586.52
  5. Step 5: Solve for x
    x = 129,111,718,790,586.52/13,101,658.40
  6. Step 6: Final answer
    x = 9,854,608.85

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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.