Home / 20,155,392,042.20-30,233,088,063.30-19,420,728,003.80

Finding the Fourth Proportional to 20,155,392,042.20, 30,233,088,063.30 and 19,420,728,003.80

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Solution

The fourth proportional to 20,155,392,042.20, 30,233,088,063.30 and 19,420,728,003.80 is: 29,131,092,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,392,042.20 : 30,233,088,063.30 = 19,420,728,003.80 : x
  2. Step 2: Convert to fraction form
    20,155,392,042.20/30,233,088,063.30 = 19,420,728,003.80/x
  3. Step 3: Cross multiply
    20,155,392,042.20x = 30,233,088,063.30 × 19,420,728,003.80
  4. Step 4: Simplify right side
    20,155,392,042.20x = 587,148,579,992,281,808,896
  5. Step 5: Solve for x
    x = 587,148,579,992,281,808,896/20,155,392,042.20
  6. Step 6: Final answer
    x = 29,131,092,005.70

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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.