Home / 129,794,030.67-179,087,126.97-76,844,446.38

Finding the Fourth Proportional to 129,794,030.67, 179,087,126.97 and 76,844,446.38

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Solution

The fourth proportional to 129,794,030.67, 179,087,126.97 and 76,844,446.38 is: 106,028,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,794,030.67 : 179,087,126.97 = 76,844,446.38 : x
  2. Step 2: Convert to fraction form
    129,794,030.67/179,087,126.97 = 76,844,446.38/x
  3. Step 3: Cross multiply
    129,794,030.67x = 179,087,126.97 × 76,844,446.38
  4. Step 4: Simplify right side
    129,794,030.67x = 13,761,851,125,794,416
  5. Step 5: Solve for x
    x = 13,761,851,125,794,416/129,794,030.67
  6. Step 6: Final answer
    x = 106,028,382.47

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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.