Home / 681,011,630.40-1,021,660,912-220,913,874.24

Finding the Fourth Proportional to 681,011,630.40, 1,021,660,912 and 220,913,874.24

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Solution

The fourth proportional to 681,011,630.40, 1,021,660,912 and 220,913,874.24 is: 331,417,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,011,630.40 : 1,021,660,912 = 220,913,874.24 : x
  2. Step 2: Convert to fraction form
    681,011,630.40/1,021,660,912 = 220,913,874.24/x
  3. Step 3: Cross multiply
    681,011,630.40x = 1,021,660,912 × 220,913,874.24
  4. Step 4: Simplify right side
    681,011,630.40x = 225,699,070,229,491,712
  5. Step 5: Solve for x
    x = 225,699,070,229,491,712/681,011,630.40
  6. Step 6: Final answer
    x = 331,417,350.53

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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.