Home / 20,126,232,336.80-30,189,348,505.20-5,405,741,789.60

Finding the Fourth Proportional to 20,126,232,336.80, 30,189,348,505.20 and 5,405,741,789.60

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Solution

The fourth proportional to 20,126,232,336.80, 30,189,348,505.20 and 5,405,741,789.60 is: 8,108,612,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126,232,336.80 : 30,189,348,505.20 = 5,405,741,789.60 : x
  2. Step 2: Convert to fraction form
    20,126,232,336.80/30,189,348,505.20 = 5,405,741,789.60/x
  3. Step 3: Cross multiply
    20,126,232,336.80x = 30,189,348,505.20 × 5,405,741,789.60
  4. Step 4: Simplify right side
    20,126,232,336.80x = 163,195,822,815,357,960,192
  5. Step 5: Solve for x
    x = 163,195,822,815,357,960,192/20,126,232,336.80
  6. Step 6: Final answer
    x = 8,108,612,684.40

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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.