Home / 426,186,761.20-639,578,740.20-273,204,847.60

Finding the Fourth Proportional to 426,186,761.20, 639,578,740.20 and 273,204,847.60

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Solution

The fourth proportional to 426,186,761.20, 639,578,740.20 and 273,204,847.60 is: 409,998,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,186,761.20 : 639,578,740.20 = 273,204,847.60 : x
  2. Step 2: Convert to fraction form
    426,186,761.20/639,578,740.20 = 273,204,847.60/x
  3. Step 3: Cross multiply
    426,186,761.20x = 639,578,740.20 × 273,204,847.60
  4. Step 4: Simplify right side
    426,186,761.20x = 174,736,012,244,541,024
  5. Step 5: Solve for x
    x = 174,736,012,244,541,024/426,186,761.20
  6. Step 6: Final answer
    x = 409,998,686.38

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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.