Home / 373,497,132.87-515,469,760.38-310,662,373.86

Finding the Fourth Proportional to 373,497,132.87, 515,469,760.38 and 310,662,373.86

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Solution

The fourth proportional to 373,497,132.87, 515,469,760.38 and 310,662,373.86 is: 428,750,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,497,132.87 : 515,469,760.38 = 310,662,373.86 : x
  2. Step 2: Convert to fraction form
    373,497,132.87/515,469,760.38 = 310,662,373.86/x
  3. Step 3: Cross multiply
    373,497,132.87x = 515,469,760.38 × 310,662,373.86
  4. Step 4: Simplify right side
    373,497,132.87x = 160,137,059,412,696,192
  5. Step 5: Solve for x
    x = 160,137,059,412,696,192/373,497,132.87
  6. Step 6: Final answer
    x = 428,750,438.28

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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.