Home / 787,508,989.40-1,181,515,836.20-551,404,451

Finding the Fourth Proportional to 787,508,989.40, 1,181,515,836.20 and 551,404,451

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Solution

The fourth proportional to 787,508,989.40, 1,181,515,836.20 and 551,404,451 is: 827,283,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,508,989.40 : 1,181,515,836.20 = 551,404,451 : x
  2. Step 2: Convert to fraction form
    787,508,989.40/1,181,515,836.20 = 551,404,451/x
  3. Step 3: Cross multiply
    787,508,989.40x = 1,181,515,836.20 × 551,404,451
  4. Step 4: Simplify right side
    787,508,989.40x = 651,493,091,007,666,944
  5. Step 5: Solve for x
    x = 651,493,091,007,666,944/787,508,989.40
  6. Step 6: Final answer
    x = 827,283,370.45

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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.