Home / 12,477,316.80-18,715,975.20-11,981,305.20

Finding the Fourth Proportional to 12,477,316.80, 18,715,975.20 and 11,981,305.20

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Solution

The fourth proportional to 12,477,316.80, 18,715,975.20 and 11,981,305.20 is: 17,971,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,316.80 : 18,715,975.20 = 11,981,305.20 : x
  2. Step 2: Convert to fraction form
    12,477,316.80/18,715,975.20 = 11,981,305.20/x
  3. Step 3: Cross multiply
    12,477,316.80x = 18,715,975.20 × 11,981,305.20
  4. Step 4: Simplify right side
    12,477,316.80x = 224,241,810,986,831.03
  5. Step 5: Solve for x
    x = 224,241,810,986,831.03/12,477,316.80
  6. Step 6: Final answer
    x = 17,971,957.80

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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.