Home / 20,127,790.20-30,132,636.30-18,050,052.72

Finding the Fourth Proportional to 20,127,790.20, 30,132,636.30 and 18,050,052.72

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Solution

The fourth proportional to 20,127,790.20, 30,132,636.30 and 18,050,052.72 is: 27,022,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127,790.20 : 30,132,636.30 = 18,050,052.72 : x
  2. Step 2: Convert to fraction form
    20,127,790.20/30,132,636.30 = 18,050,052.72/x
  3. Step 3: Cross multiply
    20,127,790.20x = 30,132,636.30 × 18,050,052.72
  4. Step 4: Simplify right side
    20,127,790.20x = 543,895,673,807,585.69
  5. Step 5: Solve for x
    x = 543,895,673,807,585.69/20,127,790.20
  6. Step 6: Final answer
    x = 27,022,125.55

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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.