Home / 827,542,425.80-1,241,139,456.30-418,213,785.80

Finding the Fourth Proportional to 827,542,425.80, 1,241,139,456.30 and 418,213,785.80

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Solution

The fourth proportional to 827,542,425.80, 1,241,139,456.30 and 418,213,785.80 is: 627,232,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,542,425.80 : 1,241,139,456.30 = 418,213,785.80 : x
  2. Step 2: Convert to fraction form
    827,542,425.80/1,241,139,456.30 = 418,213,785.80/x
  3. Step 3: Cross multiply
    827,542,425.80x = 1,241,139,456.30 × 418,213,785.80
  4. Step 4: Simplify right side
    827,542,425.80x = 519,061,630,724,976,640
  5. Step 5: Solve for x
    x = 519,061,630,724,976,640/827,542,425.80
  6. Step 6: Final answer
    x = 627,232,652.42

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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.