Home / 21,397,286.72-32,103,920.28-8,621,415.92

Finding the Fourth Proportional to 21,397,286.72, 32,103,920.28 and 8,621,415.92

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Solution

The fourth proportional to 21,397,286.72, 32,103,920.28 and 8,621,415.92 is: 12,935,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397,286.72 : 32,103,920.28 = 8,621,415.92 : x
  2. Step 2: Convert to fraction form
    21,397,286.72/32,103,920.28 = 8,621,415.92/x
  3. Step 3: Cross multiply
    21,397,286.72x = 32,103,920.28 × 8,621,415.92
  4. Step 4: Simplify right side
    21,397,286.72x = 276,781,249,396,402.88
  5. Step 5: Solve for x
    x = 276,781,249,396,402.88/21,397,286.72
  6. Step 6: Final answer
    x = 12,935,343.30

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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.