Home / 12,918,742.19-17,827,854.42-7,117,523.93

Finding the Fourth Proportional to 12,918,742.19, 17,827,854.42 and 7,117,523.93

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Solution

The fourth proportional to 12,918,742.19, 17,827,854.42 and 7,117,523.93 is: 9,822,177.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918,742.19 : 17,827,854.42 = 7,117,523.93 : x
  2. Step 2: Convert to fraction form
    12,918,742.19/17,827,854.42 = 7,117,523.93/x
  3. Step 3: Cross multiply
    12,918,742.19x = 17,827,854.42 × 7,117,523.93
  4. Step 4: Simplify right side
    12,918,742.19x = 126,890,180,454,906.28
  5. Step 5: Solve for x
    x = 126,890,180,454,906.28/12,918,742.19
  6. Step 6: Final answer
    x = 9,822,177.62

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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.