Home / 20,439,167.82-30,646,402.86-8,145,022.47

Finding the Fourth Proportional to 20,439,167.82, 30,646,402.86 and 8,145,022.47

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Solution

The fourth proportional to 20,439,167.82, 30,646,402.86 and 8,145,022.47 is: 12,212,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,167.82 : 30,646,402.86 = 8,145,022.47 : x
  2. Step 2: Convert to fraction form
    20,439,167.82/30,646,402.86 = 8,145,022.47/x
  3. Step 3: Cross multiply
    20,439,167.82x = 30,646,402.86 × 8,145,022.47
  4. Step 4: Simplify right side
    20,439,167.82x = 249,615,639,919,372.25
  5. Step 5: Solve for x
    x = 249,615,639,919,372.25/20,439,167.82
  6. Step 6: Final answer
    x = 12,212,612.67

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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.