Home / 20,187,910.70-30,281,866.05-18,629,017.10

Finding the Fourth Proportional to 20,187,910.70, 30,281,866.05 and 18,629,017.10

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Solution

The fourth proportional to 20,187,910.70, 30,281,866.05 and 18,629,017.10 is: 27,943,525.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,910.70 : 30,281,866.05 = 18,629,017.10 : x
  2. Step 2: Convert to fraction form
    20,187,910.70/30,281,866.05 = 18,629,017.10/x
  3. Step 3: Cross multiply
    20,187,910.70x = 30,281,866.05 × 18,629,017.10
  4. Step 4: Simplify right side
    20,187,910.70x = 564,121,400,465,359.50
  5. Step 5: Solve for x
    x = 564,121,400,465,359.50/20,187,910.70
  6. Step 6: Final answer
    x = 27,943,525.65

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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.