Home / 432,948,983.02-649,354,344.24-126,169,336.78

Finding the Fourth Proportional to 432,948,983.02, 649,354,344.24 and 126,169,336.78

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Solution

The fourth proportional to 432,948,983.02, 649,354,344.24 and 126,169,336.78 is: 189,233,859.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,948,983.02 : 649,354,344.24 = 126,169,336.78 : x
  2. Step 2: Convert to fraction form
    432,948,983.02/649,354,344.24 = 126,169,336.78/x
  3. Step 3: Cross multiply
    432,948,983.02x = 649,354,344.24 × 126,169,336.78
  4. Step 4: Simplify right side
    432,948,983.02x = 81,928,606,947,972,608
  5. Step 5: Solve for x
    x = 81,928,606,947,972,608/432,948,983.02
  6. Step 6: Final answer
    x = 189,233,859.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.