Home / 681,406,315.68-1,022,109,356.88-215,394,873.24

Finding the Fourth Proportional to 681,406,315.68, 1,022,109,356.88 and 215,394,873.24

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Solution

The fourth proportional to 681,406,315.68, 1,022,109,356.88 and 215,394,873.24 is: 323,092,272.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,406,315.68 : 1,022,109,356.88 = 215,394,873.24 : x
  2. Step 2: Convert to fraction form
    681,406,315.68/1,022,109,356.88 = 215,394,873.24/x
  3. Step 3: Cross multiply
    681,406,315.68x = 1,022,109,356.88 × 215,394,873.24
  4. Step 4: Simplify right side
    681,406,315.68x = 220,157,115,362,585,536
  5. Step 5: Solve for x
    x = 220,157,115,362,585,536/681,406,315.68
  6. Step 6: Final answer
    x = 323,092,272.99

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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.