Home / 221,275,235.80-331,241,007.30-197,088,765.40

Finding the Fourth Proportional to 221,275,235.80, 331,241,007.30 and 197,088,765.40

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Solution

The fourth proportional to 221,275,235.80, 331,241,007.30 and 197,088,765.40 is: 295,034,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,275,235.80 : 331,241,007.30 = 197,088,765.40 : x
  2. Step 2: Convert to fraction form
    221,275,235.80/331,241,007.30 = 197,088,765.40/x
  3. Step 3: Cross multiply
    221,275,235.80x = 331,241,007.30 × 197,088,765.40
  4. Step 4: Simplify right side
    221,275,235.80x = 65,283,881,178,609,392
  5. Step 5: Solve for x
    x = 65,283,881,178,609,392/221,275,235.80
  6. Step 6: Final answer
    x = 295,034,737.81

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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.