Home / 261,858,415.20-392,773,385.36-80,105,593.20

Finding the Fourth Proportional to 261,858,415.20, 392,773,385.36 and 80,105,593.20

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Solution

The fourth proportional to 261,858,415.20, 392,773,385.36 and 80,105,593.20 is: 120,154,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,858,415.20 : 392,773,385.36 = 80,105,593.20 : x
  2. Step 2: Convert to fraction form
    261,858,415.20/392,773,385.36 = 80,105,593.20/x
  3. Step 3: Cross multiply
    261,858,415.20x = 392,773,385.36 × 80,105,593.20
  4. Step 4: Simplify right side
    261,858,415.20x = 31,463,345,027,434,996
  5. Step 5: Solve for x
    x = 31,463,345,027,434,996/261,858,415.20
  6. Step 6: Final answer
    x = 120,154,034.40

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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.