Home / 207,790,961.40-311,480,864.10-98,423,902.80

Finding the Fourth Proportional to 207,790,961.40, 311,480,864.10 and 98,423,902.80

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Solution

The fourth proportional to 207,790,961.40, 311,480,864.10 and 98,423,902.80 is: 147,538,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,790,961.40 : 311,480,864.10 = 98,423,902.80 : x
  2. Step 2: Convert to fraction form
    207,790,961.40/311,480,864.10 = 98,423,902.80/x
  3. Step 3: Cross multiply
    207,790,961.40x = 311,480,864.10 × 98,423,902.80
  4. Step 4: Simplify right side
    207,790,961.40x = 30,657,162,292,238,412
  5. Step 5: Solve for x
    x = 30,657,162,292,238,412/207,790,961.40
  6. Step 6: Final answer
    x = 147,538,478.51

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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.