Home / 13,835,387.20-20,761,167.84-9,993,421.12

Finding the Fourth Proportional to 13,835,387.20, 20,761,167.84 and 9,993,421.12

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Solution

The fourth proportional to 13,835,387.20, 20,761,167.84 and 9,993,421.12 is: 14,995,973.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835,387.20 : 20,761,167.84 = 9,993,421.12 : x
  2. Step 2: Convert to fraction form
    13,835,387.20/20,761,167.84 = 9,993,421.12/x
  3. Step 3: Cross multiply
    13,835,387.20x = 20,761,167.84 × 9,993,421.12
  4. Step 4: Simplify right side
    13,835,387.20x = 207,475,093,168,120.75
  5. Step 5: Solve for x
    x = 207,475,093,168,120.75/13,835,387.20
  6. Step 6: Final answer
    x = 14,995,973.02

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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.