Home / 12,096,986.80-18,145,480.20-9,111,002.80

Finding the Fourth Proportional to 12,096,986.80, 18,145,480.20 and 9,111,002.80

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Solution

The fourth proportional to 12,096,986.80, 18,145,480.20 and 9,111,002.80 is: 13,666,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,986.80 : 18,145,480.20 = 9,111,002.80 : x
  2. Step 2: Convert to fraction form
    12,096,986.80/18,145,480.20 = 9,111,002.80/x
  3. Step 3: Cross multiply
    12,096,986.80x = 18,145,480.20 × 9,111,002.80
  4. Step 4: Simplify right side
    12,096,986.80x = 165,323,520,909,544.56
  5. Step 5: Solve for x
    x = 165,323,520,909,544.56/12,096,986.80
  6. Step 6: Final answer
    x = 13,666,504.20

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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.