Home / 12,100,810.40-18,151,215.60-10,778,112.80

Finding the Fourth Proportional to 12,100,810.40, 18,151,215.60 and 10,778,112.80

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Solution

The fourth proportional to 12,100,810.40, 18,151,215.60 and 10,778,112.80 is: 16,167,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,810.40 : 18,151,215.60 = 10,778,112.80 : x
  2. Step 2: Convert to fraction form
    12,100,810.40/18,151,215.60 = 10,778,112.80/x
  3. Step 3: Cross multiply
    12,100,810.40x = 18,151,215.60 × 10,778,112.80
  4. Step 4: Simplify right side
    12,100,810.40x = 195,635,849,193,919.72
  5. Step 5: Solve for x
    x = 195,635,849,193,919.72/12,100,810.40
  6. Step 6: Final answer
    x = 16,167,169.20

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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.