Home / 20,448,646.72-28,218,974.88-11,281,675.84

Finding the Fourth Proportional to 20,448,646.72, 28,218,974.88 and 11,281,675.84

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Solution

The fourth proportional to 20,448,646.72, 28,218,974.88 and 11,281,675.84 is: 15,568,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448,646.72 : 28,218,974.88 = 11,281,675.84 : x
  2. Step 2: Convert to fraction form
    20,448,646.72/28,218,974.88 = 11,281,675.84/x
  3. Step 3: Cross multiply
    20,448,646.72x = 28,218,974.88 × 11,281,675.84
  4. Step 4: Simplify right side
    20,448,646.72x = 318,357,327,133,262.88
  5. Step 5: Solve for x
    x = 318,357,327,133,262.88/20,448,646.72
  6. Step 6: Final answer
    x = 15,568,625.71

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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.