Home / 722,339,943.56-996,834,223.86-392,315,082.56

Finding the Fourth Proportional to 722,339,943.56, 996,834,223.86 and 392,315,082.56

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Solution

The fourth proportional to 722,339,943.56, 996,834,223.86 and 392,315,082.56 is: 541,397,584.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,339,943.56 : 996,834,223.86 = 392,315,082.56 : x
  2. Step 2: Convert to fraction form
    722,339,943.56/996,834,223.86 = 392,315,082.56/x
  3. Step 3: Cross multiply
    722,339,943.56x = 996,834,223.86 × 392,315,082.56
  4. Step 4: Simplify right side
    722,339,943.56x = 391,073,100,832,269,440
  5. Step 5: Solve for x
    x = 391,073,100,832,269,440/722,339,943.56
  6. Step 6: Final answer
    x = 541,397,584.78

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1.5x scale

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.