Home / 681,406,314.18-1,022,109,354.63-215,394,871.74

Finding the Fourth Proportional to 681,406,314.18, 1,022,109,354.63 and 215,394,871.74

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Solution

The fourth proportional to 681,406,314.18, 1,022,109,354.63 and 215,394,871.74 is: 323,092,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,406,314.18 : 1,022,109,354.63 = 215,394,871.74 : x
  2. Step 2: Convert to fraction form
    681,406,314.18/1,022,109,354.63 = 215,394,871.74/x
  3. Step 3: Cross multiply
    681,406,314.18x = 1,022,109,354.63 × 215,394,871.74
  4. Step 4: Simplify right side
    681,406,314.18x = 220,157,113,344,783,040
  5. Step 5: Solve for x
    x = 220,157,113,344,783,040/681,406,314.18
  6. Step 6: Final answer
    x = 323,092,270.74

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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.