Home / 499,320,546.28-688,498,470.28-373,469,420.78

Finding the Fourth Proportional to 499,320,546.28, 688,498,470.28 and 373,469,420.78

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Solution

The fourth proportional to 499,320,546.28, 688,498,470.28 and 373,469,420.78 is: 514,966,040.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,320,546.28 : 688,498,470.28 = 373,469,420.78 : x
  2. Step 2: Convert to fraction form
    499,320,546.28/688,498,470.28 = 373,469,420.78/x
  3. Step 3: Cross multiply
    499,320,546.28x = 688,498,470.28 × 373,469,420.78
  4. Step 4: Simplify right side
    499,320,546.28x = 257,133,124,905,469,632
  5. Step 5: Solve for x
    x = 257,133,124,905,469,632/499,320,546.28
  6. Step 6: Final answer
    x = 514,966,040.99

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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.