Home / 80,873,143.80-121,309,715.70-50,262,142.20

Finding the Fourth Proportional to 80,873,143.80, 121,309,715.70 and 50,262,142.20

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Solution

The fourth proportional to 80,873,143.80, 121,309,715.70 and 50,262,142.20 is: 75,393,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873,143.80 : 121,309,715.70 = 50,262,142.20 : x
  2. Step 2: Convert to fraction form
    80,873,143.80/121,309,715.70 = 50,262,142.20/x
  3. Step 3: Cross multiply
    80,873,143.80x = 121,309,715.70 × 50,262,142.20
  4. Step 4: Simplify right side
    80,873,143.80x = 6,097,286,180,754,973
  5. Step 5: Solve for x
    x = 6,097,286,180,754,973/80,873,143.80
  6. Step 6: Final answer
    x = 75,393,213.30

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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.