Home / 20,127,789.20-30,132,634.80-18,050,051.72

Finding the Fourth Proportional to 20,127,789.20, 30,132,634.80 and 18,050,051.72

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Solution

The fourth proportional to 20,127,789.20, 30,132,634.80 and 18,050,051.72 is: 27,022,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127,789.20 : 30,132,634.80 = 18,050,051.72 : x
  2. Step 2: Convert to fraction form
    20,127,789.20/30,132,634.80 = 18,050,051.72/x
  3. Step 3: Cross multiply
    20,127,789.20x = 30,132,634.80 × 18,050,051.72
  4. Step 4: Simplify right side
    20,127,789.20x = 543,895,616,599,871.81
  5. Step 5: Solve for x
    x = 543,895,616,599,871.81/20,127,789.20
  6. Step 6: Final answer
    x = 27,022,124.05

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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.