Home / 71,317,341.70-106,976,012.55-66,498,943.30

Finding the Fourth Proportional to 71,317,341.70, 106,976,012.55 and 66,498,943.30

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Solution

The fourth proportional to 71,317,341.70, 106,976,012.55 and 66,498,943.30 is: 99,748,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317,341.70 : 106,976,012.55 = 66,498,943.30 : x
  2. Step 2: Convert to fraction form
    71,317,341.70/106,976,012.55 = 66,498,943.30/x
  3. Step 3: Cross multiply
    71,317,341.70x = 106,976,012.55 × 66,498,943.30
  4. Step 4: Simplify right side
    71,317,341.70x = 7,113,791,793,022,538
  5. Step 5: Solve for x
    x = 7,113,791,793,022,538/71,317,341.70
  6. Step 6: Final answer
    x = 99,748,414.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.