Home / 500,753,367.72-690,241,461.12-394,734,004.92

Finding the Fourth Proportional to 500,753,367.72, 690,241,461.12 and 394,734,004.92

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Solution

The fourth proportional to 500,753,367.72, 690,241,461.12 and 394,734,004.92 is: 544,103,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,753,367.72 : 690,241,461.12 = 394,734,004.92 : x
  2. Step 2: Convert to fraction form
    500,753,367.72/690,241,461.12 = 394,734,004.92/x
  3. Step 3: Cross multiply
    500,753,367.72x = 690,241,461.12 × 394,734,004.92
  4. Step 4: Simplify right side
    500,753,367.72x = 272,461,776,309,730,080
  5. Step 5: Solve for x
    x = 272,461,776,309,730,080/500,753,367.72
  6. Step 6: Final answer
    x = 544,103,732.24

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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.