Home / 20,713,672.08-28,571,528.52-13,744,198.80

Finding the Fourth Proportional to 20,713,672.08, 28,571,528.52 and 13,744,198.80

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Solution

The fourth proportional to 20,713,672.08, 28,571,528.52 and 13,744,198.80 is: 18,958,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713,672.08 : 28,571,528.52 = 13,744,198.80 : x
  2. Step 2: Convert to fraction form
    20,713,672.08/28,571,528.52 = 13,744,198.80/x
  3. Step 3: Cross multiply
    20,713,672.08x = 28,571,528.52 × 13,744,198.80
  4. Step 4: Simplify right side
    20,713,672.08x = 392,692,767,998,749.81
  5. Step 5: Solve for x
    x = 392,692,767,998,749.81/20,713,672.08
  6. Step 6: Final answer
    x = 18,958,143.51

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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.