Home / 777,955,997.59-1,073,582,489.08-420,723,766.49

Finding the Fourth Proportional to 777,955,997.59, 1,073,582,489.08 and 420,723,766.49

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Solution

The fourth proportional to 777,955,997.59, 1,073,582,489.08 and 420,723,766.49 is: 580,600,535.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,955,997.59 : 1,073,582,489.08 = 420,723,766.49 : x
  2. Step 2: Convert to fraction form
    777,955,997.59/1,073,582,489.08 = 420,723,766.49/x
  3. Step 3: Cross multiply
    777,955,997.59x = 1,073,582,489.08 × 420,723,766.49
  4. Step 4: Simplify right side
    777,955,997.59x = 451,681,668,438,930,304
  5. Step 5: Solve for x
    x = 451,681,668,438,930,304/777,955,997.59
  6. Step 6: Final answer
    x = 580,600,535.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.