Home / 13,486,525.40-20,229,788.10-7,729,247.90

Finding the Fourth Proportional to 13,486,525.40, 20,229,788.10 and 7,729,247.90

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Solution

The fourth proportional to 13,486,525.40, 20,229,788.10 and 7,729,247.90 is: 11,593,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,525.40 : 20,229,788.10 = 7,729,247.90 : x
  2. Step 2: Convert to fraction form
    13,486,525.40/20,229,788.10 = 7,729,247.90/x
  3. Step 3: Cross multiply
    13,486,525.40x = 20,229,788.10 × 7,729,247.90
  4. Step 4: Simplify right side
    13,486,525.40x = 156,361,047,189,370
  5. Step 5: Solve for x
    x = 156,361,047,189,370/13,486,525.40
  6. Step 6: Final answer
    x = 11,593,871.85

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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.