Home / 80,229,447.28-120,076,020.28-45,676,573.20

Finding the Fourth Proportional to 80,229,447.28, 120,076,020.28 and 45,676,573.20

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Solution

The fourth proportional to 80,229,447.28, 120,076,020.28 and 45,676,573.20 is: 68,362,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,229,447.28 : 120,076,020.28 = 45,676,573.20 : x
  2. Step 2: Convert to fraction form
    80,229,447.28/120,076,020.28 = 45,676,573.20/x
  3. Step 3: Cross multiply
    80,229,447.28x = 120,076,020.28 × 45,676,573.20
  4. Step 4: Simplify right side
    80,229,447.28x = 5,484,661,129,884,105
  5. Step 5: Solve for x
    x = 5,484,661,129,884,105/80,229,447.28
  6. Step 6: Final answer
    x = 68,362,195.13

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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.