Home / 12,884,778-17,780,540.58-7,083,517.50

Finding the Fourth Proportional to 12,884,778, 17,780,540.58 and 7,083,517.50

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Solution

The fourth proportional to 12,884,778, 17,780,540.58 and 7,083,517.50 is: 9,775,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884,778 : 17,780,540.58 = 7,083,517.50 : x
  2. Step 2: Convert to fraction form
    12,884,778/17,780,540.58 = 7,083,517.50/x
  3. Step 3: Cross multiply
    12,884,778x = 17,780,540.58 × 7,083,517.50
  4. Step 4: Simplify right side
    12,884,778x = 125,948,770,357,890.14
  5. Step 5: Solve for x
    x = 125,948,770,357,890.14/12,884,778
  6. Step 6: Final answer
    x = 9,775,005.08

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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.