Home / 18,723,968.20-28,023,744.30-13,591,808.20

Finding the Fourth Proportional to 18,723,968.20, 28,023,744.30 and 13,591,808.20

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Solution

The fourth proportional to 18,723,968.20, 28,023,744.30 and 13,591,808.20 is: 20,342,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,968.20 : 28,023,744.30 = 13,591,808.20 : x
  2. Step 2: Convert to fraction form
    18,723,968.20/28,023,744.30 = 13,591,808.20/x
  3. Step 3: Cross multiply
    18,723,968.20x = 28,023,744.30 × 13,591,808.20
  4. Step 4: Simplify right side
    18,723,968.20x = 380,893,357,571,443.25
  5. Step 5: Solve for x
    x = 380,893,357,571,443.25/18,723,968.20
  6. Step 6: Final answer
    x = 20,342,555.25

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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.