Home / 20,145,095,179.80-30,217,642,769.70-15,936,649,330.20

Finding the Fourth Proportional to 20,145,095,179.80, 30,217,642,769.70 and 15,936,649,330.20

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Solution

The fourth proportional to 20,145,095,179.80, 30,217,642,769.70 and 15,936,649,330.20 is: 23,904,973,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145,095,179.80 : 30,217,642,769.70 = 15,936,649,330.20 : x
  2. Step 2: Convert to fraction form
    20,145,095,179.80/30,217,642,769.70 = 15,936,649,330.20/x
  3. Step 3: Cross multiply
    20,145,095,179.80x = 30,217,642,769.70 × 15,936,649,330.20
  4. Step 4: Simplify right side
    20,145,095,179.80x = 481,567,976,405,962,391,552
  5. Step 5: Solve for x
    x = 481,567,976,405,962,391,552/20,145,095,179.80
  6. Step 6: Final answer
    x = 23,904,973,995.30

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Double scale
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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.