Home / 12,984,691.70-17,917,316.42-7,479,866.90

Finding the Fourth Proportional to 12,984,691.70, 17,917,316.42 and 7,479,866.90

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Solution

The fourth proportional to 12,984,691.70, 17,917,316.42 and 7,479,866.90 is: 10,321,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,691.70 : 17,917,316.42 = 7,479,866.90 : x
  2. Step 2: Convert to fraction form
    12,984,691.70/17,917,316.42 = 7,479,866.90/x
  3. Step 3: Cross multiply
    12,984,691.70x = 17,917,316.42 × 7,479,866.90
  4. Step 4: Simplify right side
    12,984,691.70x = 134,019,142,026,784.52
  5. Step 5: Solve for x
    x = 134,019,142,026,784.52/12,984,691.70
  6. Step 6: Final answer
    x = 10,321,318.76

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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.