Home / 12,419,686.80-18,629,530.20-8,593,311.60

Finding the Fourth Proportional to 12,419,686.80, 18,629,530.20 and 8,593,311.60

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Solution

The fourth proportional to 12,419,686.80, 18,629,530.20 and 8,593,311.60 is: 12,889,967.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419,686.80 : 18,629,530.20 = 8,593,311.60 : x
  2. Step 2: Convert to fraction form
    12,419,686.80/18,629,530.20 = 8,593,311.60/x
  3. Step 3: Cross multiply
    12,419,686.80x = 18,629,530.20 × 8,593,311.60
  4. Step 4: Simplify right side
    12,419,686.80x = 160,089,357,970,210.31
  5. Step 5: Solve for x
    x = 160,089,357,970,210.31/12,419,686.80
  6. Step 6: Final answer
    x = 12,889,967.40

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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.