Home / 12,209,019.20-18,321,823.20-6,817,659.20

Finding the Fourth Proportional to 12,209,019.20, 18,321,823.20 and 6,817,659.20

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Solution

The fourth proportional to 12,209,019.20, 18,321,823.20 and 6,817,659.20 is: 10,231,120.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,019.20 : 18,321,823.20 = 6,817,659.20 : x
  2. Step 2: Convert to fraction form
    12,209,019.20/18,321,823.20 = 6,817,659.20/x
  3. Step 3: Cross multiply
    12,209,019.20x = 18,321,823.20 × 6,817,659.20
  4. Step 4: Simplify right side
    12,209,019.20x = 124,911,946,500,253.44
  5. Step 5: Solve for x
    x = 124,911,946,500,253.44/12,209,019.20
  6. Step 6: Final answer
    x = 10,231,120.49

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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.