Home / 80,881,127.10-121,321,690.65-67,967,110.80

Finding the Fourth Proportional to 80,881,127.10, 121,321,690.65 and 67,967,110.80

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Solution

The fourth proportional to 80,881,127.10, 121,321,690.65 and 67,967,110.80 is: 101,950,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,881,127.10 : 121,321,690.65 = 67,967,110.80 : x
  2. Step 2: Convert to fraction form
    80,881,127.10/121,321,690.65 = 67,967,110.80/x
  3. Step 3: Cross multiply
    80,881,127.10x = 121,321,690.65 × 67,967,110.80
  4. Step 4: Simplify right side
    80,881,127.10x = 8,245,884,790,851,874
  5. Step 5: Solve for x
    x = 8,245,884,790,851,874/80,881,127.10
  6. Step 6: Final answer
    x = 101,950,666.20

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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.