Home / 15,887,286.08-21,923,799.84-8,643,970.88

Finding the Fourth Proportional to 15,887,286.08, 21,923,799.84 and 8,643,970.88

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Solution

The fourth proportional to 15,887,286.08, 21,923,799.84 and 8,643,970.88 is: 11,928,323.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887,286.08 : 21,923,799.84 = 8,643,970.88 : x
  2. Step 2: Convert to fraction form
    15,887,286.08/21,923,799.84 = 8,643,970.88/x
  3. Step 3: Cross multiply
    15,887,286.08x = 21,923,799.84 × 8,643,970.88
  4. Step 4: Simplify right side
    15,887,286.08x = 189,508,687,395,908.69
  5. Step 5: Solve for x
    x = 189,508,687,395,908.69/15,887,286.08
  6. Step 6: Final answer
    x = 11,928,323.47

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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.