Home / 20,155,392,142.20-30,233,088,213.30-18,196,288,039.80

Finding the Fourth Proportional to 20,155,392,142.20, 30,233,088,213.30 and 18,196,288,039.80

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Solution

The fourth proportional to 20,155,392,142.20, 30,233,088,213.30 and 18,196,288,039.80 is: 27,294,432,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,392,142.20 : 30,233,088,213.30 = 18,196,288,039.80 : x
  2. Step 2: Convert to fraction form
    20,155,392,142.20/30,233,088,213.30 = 18,196,288,039.80/x
  3. Step 3: Cross multiply
    20,155,392,142.20x = 30,233,088,213.30 × 18,196,288,039.80
  4. Step 4: Simplify right side
    20,155,392,142.20x = 550,129,981,461,889,089,536
  5. Step 5: Solve for x
    x = 550,129,981,461,889,089,536/20,155,392,142.20
  6. Step 6: Final answer
    x = 27,294,432,059.70

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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.