Home / 722,339,929.03-996,834,203.90-392,315,068.03

Finding the Fourth Proportional to 722,339,929.03, 996,834,203.90 and 392,315,068.03

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Solution

The fourth proportional to 722,339,929.03, 996,834,203.90 and 392,315,068.03 is: 541,397,564.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,339,929.03 : 996,834,203.90 = 392,315,068.03 : x
  2. Step 2: Convert to fraction form
    722,339,929.03/996,834,203.90 = 392,315,068.03/x
  3. Step 3: Cross multiply
    722,339,929.03x = 996,834,203.90 × 392,315,068.03
  4. Step 4: Simplify right side
    722,339,929.03x = 391,073,078,517,659,328
  5. Step 5: Solve for x
    x = 391,073,078,517,659,328/722,339,929.03
  6. Step 6: Final answer
    x = 541,397,564.78

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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.