Home / 20,142,617.27-30,222,856.56-10,555,716.47

Finding the Fourth Proportional to 20,142,617.27, 30,222,856.56 and 10,555,716.47

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Solution

The fourth proportional to 20,142,617.27, 30,222,856.56 and 10,555,716.47 is: 15,838,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,617.27 : 30,222,856.56 = 10,555,716.47 : x
  2. Step 2: Convert to fraction form
    20,142,617.27/30,222,856.56 = 10,555,716.47/x
  3. Step 3: Cross multiply
    20,142,617.27x = 30,222,856.56 × 10,555,716.47
  4. Step 4: Simplify right side
    20,142,617.27x = 319,023,904,760,839.56
  5. Step 5: Solve for x
    x = 319,023,904,760,839.56/20,142,617.27
  6. Step 6: Final answer
    x = 15,838,254.80

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1.5x scale

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.