Home / 221,275,231.80-331,241,001.30-197,088,761.40

Finding the Fourth Proportional to 221,275,231.80, 331,241,001.30 and 197,088,761.40

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Solution

The fourth proportional to 221,275,231.80, 331,241,001.30 and 197,088,761.40 is: 295,034,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,275,231.80 : 331,241,001.30 = 197,088,761.40 : x
  2. Step 2: Convert to fraction form
    221,275,231.80/331,241,001.30 = 197,088,761.40/x
  3. Step 3: Cross multiply
    221,275,231.80x = 331,241,001.30 × 197,088,761.40
  4. Step 4: Simplify right side
    221,275,231.80x = 65,283,878,671,112,792
  5. Step 5: Solve for x
    x = 65,283,878,671,112,792/221,275,231.80
  6. Step 6: Final answer
    x = 295,034,731.81

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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.