Home / 722,339,909.28-996,834,176.64-392,315,048.28

Finding the Fourth Proportional to 722,339,909.28, 996,834,176.64 and 392,315,048.28

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Solution

The fourth proportional to 722,339,909.28, 996,834,176.64 and 392,315,048.28 is: 541,397,537.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,339,909.28 : 996,834,176.64 = 392,315,048.28 : x
  2. Step 2: Convert to fraction form
    722,339,909.28/996,834,176.64 = 392,315,048.28/x
  3. Step 3: Cross multiply
    722,339,909.28x = 996,834,176.64 × 392,315,048.28
  4. Step 4: Simplify right side
    722,339,909.28x = 391,073,048,135,675,584
  5. Step 5: Solve for x
    x = 391,073,048,135,675,584/722,339,909.28
  6. Step 6: Final answer
    x = 541,397,537.52

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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.