Home / 71,317,348.20-106,976,022.30-66,498,949.80

Finding the Fourth Proportional to 71,317,348.20, 106,976,022.30 and 66,498,949.80

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Solution

The fourth proportional to 71,317,348.20, 106,976,022.30 and 66,498,949.80 is: 99,748,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317,348.20 : 106,976,022.30 = 66,498,949.80 : x
  2. Step 2: Convert to fraction form
    71,317,348.20/106,976,022.30 = 66,498,949.80/x
  3. Step 3: Cross multiply
    71,317,348.20x = 106,976,022.30 × 66,498,949.80
  4. Step 4: Simplify right side
    71,317,348.20x = 7,113,793,136,731,380
  5. Step 5: Solve for x
    x = 7,113,793,136,731,380/71,317,348.20
  6. Step 6: Final answer
    x = 99,748,424.70

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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.