Home / 12,099,743.80-18,149,615.70-9,359,870.20

Finding the Fourth Proportional to 12,099,743.80, 18,149,615.70 and 9,359,870.20

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Solution

The fourth proportional to 12,099,743.80, 18,149,615.70 and 9,359,870.20 is: 14,039,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099,743.80 : 18,149,615.70 = 9,359,870.20 : x
  2. Step 2: Convert to fraction form
    12,099,743.80/18,149,615.70 = 9,359,870.20/x
  3. Step 3: Cross multiply
    12,099,743.80x = 18,149,615.70 × 9,359,870.20
  4. Step 4: Simplify right side
    12,099,743.80x = 169,878,047,131,882.12
  5. Step 5: Solve for x
    x = 169,878,047,131,882.12/12,099,743.80
  6. Step 6: Final answer
    x = 14,039,805.30

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Similar ratio
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1.5x scale

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.