Home / 20,155,392,131.20-30,233,088,196.80-19,420,728,092.80

Finding the Fourth Proportional to 20,155,392,131.20, 30,233,088,196.80 and 19,420,728,092.80

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Solution

The fourth proportional to 20,155,392,131.20, 30,233,088,196.80 and 19,420,728,092.80 is: 29,131,092,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,392,131.20 : 30,233,088,196.80 = 19,420,728,092.80 : x
  2. Step 2: Convert to fraction form
    20,155,392,131.20/30,233,088,196.80 = 19,420,728,092.80/x
  3. Step 3: Cross multiply
    20,155,392,131.20x = 30,233,088,196.80 × 19,420,728,092.80
  4. Step 4: Simplify right side
    20,155,392,131.20x = 587,148,585,275,693,793,280
  5. Step 5: Solve for x
    x = 587,148,585,275,693,793,280/20,155,392,131.20
  6. Step 6: Final answer
    x = 29,131,092,139.20

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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.