Home / 20,199,796.45-30,299,694.68-10,098,772.45

Finding the Fourth Proportional to 20,199,796.45, 30,299,694.68 and 10,098,772.45

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Solution

The fourth proportional to 20,199,796.45, 30,299,694.68 and 10,098,772.45 is: 15,148,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,796.45 : 30,299,694.68 = 10,098,772.45 : x
  2. Step 2: Convert to fraction form
    20,199,796.45/30,299,694.68 = 10,098,772.45/x
  3. Step 3: Cross multiply
    20,199,796.45x = 30,299,694.68 × 10,098,772.45
  4. Step 4: Simplify right side
    20,199,796.45x = 305,989,721,877,795.56
  5. Step 5: Solve for x
    x = 305,989,721,877,795.56/20,199,796.45
  6. Step 6: Final answer
    x = 15,148,158.68

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Similar ratio
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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.