Home / 13,906,665.60-20,859,998.40-7,104,220.80

Finding the Fourth Proportional to 13,906,665.60, 20,859,998.40 and 7,104,220.80

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Solution

The fourth proportional to 13,906,665.60, 20,859,998.40 and 7,104,220.80 is: 10,656,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906,665.60 : 20,859,998.40 = 7,104,220.80 : x
  2. Step 2: Convert to fraction form
    13,906,665.60/20,859,998.40 = 7,104,220.80/x
  3. Step 3: Cross multiply
    13,906,665.60x = 20,859,998.40 × 7,104,220.80
  4. Step 4: Simplify right side
    13,906,665.60x = 148,194,034,521,246.72
  5. Step 5: Solve for x
    x = 148,194,034,521,246.72/13,906,665.60
  6. Step 6: Final answer
    x = 10,656,331.20

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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.