Home / 20,186,233.20-30,279,349.80-12,124,076.40

Finding the Fourth Proportional to 20,186,233.20, 30,279,349.80 and 12,124,076.40

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Solution

The fourth proportional to 20,186,233.20, 30,279,349.80 and 12,124,076.40 is: 18,186,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,233.20 : 30,279,349.80 = 12,124,076.40 : x
  2. Step 2: Convert to fraction form
    20,186,233.20/30,279,349.80 = 12,124,076.40/x
  3. Step 3: Cross multiply
    20,186,233.20x = 30,279,349.80 × 12,124,076.40
  4. Step 4: Simplify right side
    20,186,233.20x = 367,109,150,317,524.75
  5. Step 5: Solve for x
    x = 367,109,150,317,524.75/20,186,233.20
  6. Step 6: Final answer
    x = 18,186,114.60

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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.