Home / 15,419,158.61-21,278,463.90-8,448,728.52

Finding the Fourth Proportional to 15,419,158.61, 21,278,463.90 and 8,448,728.52

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Solution

The fourth proportional to 15,419,158.61, 21,278,463.90 and 8,448,728.52 is: 11,659,259.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419,158.61 : 21,278,463.90 = 8,448,728.52 : x
  2. Step 2: Convert to fraction form
    15,419,158.61/21,278,463.90 = 8,448,728.52/x
  3. Step 3: Cross multiply
    15,419,158.61x = 21,278,463.90 × 8,448,728.52
  4. Step 4: Simplify right side
    15,419,158.61x = 179,775,964,742,140.56
  5. Step 5: Solve for x
    x = 179,775,964,742,140.56/15,419,158.61
  6. Step 6: Final answer
    x = 11,659,259.06

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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.