Home / 812,764,822.12-1,121,614,600.98-441,487,143.88

Finding the Fourth Proportional to 812,764,822.12, 1,121,614,600.98 and 441,487,143.88

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Solution

The fourth proportional to 812,764,822.12, 1,121,614,600.98 and 441,487,143.88 is: 609,251,794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,764,822.12 : 1,121,614,600.98 = 441,487,143.88 : x
  2. Step 2: Convert to fraction form
    812,764,822.12/1,121,614,600.98 = 441,487,143.88/x
  3. Step 3: Cross multiply
    812,764,822.12x = 1,121,614,600.98 × 441,487,143.88
  4. Step 4: Simplify right side
    812,764,822.12x = 495,178,426,720,766,080
  5. Step 5: Solve for x
    x = 495,178,426,720,766,080/812,764,822.12
  6. Step 6: Final answer
    x = 609,251,794.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.