Home / 20,206,214.70-30,309,322.05-12,144,057.90

Finding the Fourth Proportional to 20,206,214.70, 30,309,322.05 and 12,144,057.90

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Solution

The fourth proportional to 20,206,214.70, 30,309,322.05 and 12,144,057.90 is: 18,216,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,214.70 : 30,309,322.05 = 12,144,057.90 : x
  2. Step 2: Convert to fraction form
    20,206,214.70/30,309,322.05 = 12,144,057.90/x
  3. Step 3: Cross multiply
    20,206,214.70x = 30,309,322.05 × 12,144,057.90
  4. Step 4: Simplify right side
    20,206,214.70x = 368,078,161,884,946.69
  5. Step 5: Solve for x
    x = 368,078,161,884,946.69/20,206,214.70
  6. Step 6: Final answer
    x = 18,216,086.85

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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.