Home / 20,791,330.24-31,192,308.96-8,008,402.72

Finding the Fourth Proportional to 20,791,330.24, 31,192,308.96 and 8,008,402.72

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Solution

The fourth proportional to 20,791,330.24, 31,192,308.96 and 8,008,402.72 is: 12,014,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791,330.24 : 31,192,308.96 = 8,008,402.72 : x
  2. Step 2: Convert to fraction form
    20,791,330.24/31,192,308.96 = 8,008,402.72/x
  3. Step 3: Cross multiply
    20,791,330.24x = 31,192,308.96 × 8,008,402.72
  4. Step 4: Simplify right side
    20,791,330.24x = 249,800,571,918,344.38
  5. Step 5: Solve for x
    x = 249,800,571,918,344.38/20,791,330.24
  6. Step 6: Final answer
    x = 12,014,650.77

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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.