Home / 12,100,233.60-18,150,350.40-7,789,219.20

Finding the Fourth Proportional to 12,100,233.60, 18,150,350.40 and 7,789,219.20

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Solution

The fourth proportional to 12,100,233.60, 18,150,350.40 and 7,789,219.20 is: 11,683,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,233.60 : 18,150,350.40 = 7,789,219.20 : x
  2. Step 2: Convert to fraction form
    12,100,233.60/18,150,350.40 = 7,789,219.20/x
  3. Step 3: Cross multiply
    12,100,233.60x = 18,150,350.40 × 7,789,219.20
  4. Step 4: Simplify right side
    12,100,233.60x = 141,377,057,822,407.66
  5. Step 5: Solve for x
    x = 141,377,057,822,407.66/12,100,233.60
  6. Step 6: Final answer
    x = 11,683,828.80

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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.