Home / 515,268,064.80-772,902,097.20-413,231,392.80

Finding the Fourth Proportional to 515,268,064.80, 772,902,097.20 and 413,231,392.80

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Solution

The fourth proportional to 515,268,064.80, 772,902,097.20 and 413,231,392.80 is: 619,847,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,268,064.80 : 772,902,097.20 = 413,231,392.80 : x
  2. Step 2: Convert to fraction form
    515,268,064.80/772,902,097.20 = 413,231,392.80/x
  3. Step 3: Cross multiply
    515,268,064.80x = 772,902,097.20 × 413,231,392.80
  4. Step 4: Simplify right side
    515,268,064.80x = 319,387,410,123,996,992
  5. Step 5: Solve for x
    x = 319,387,410,123,996,992/515,268,064.80
  6. Step 6: Final answer
    x = 619,847,089.20

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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.