Home / 221,920,243.65-305,999,321.30-165,986,410.10

Finding the Fourth Proportional to 221,920,243.65, 305,999,321.30 and 165,986,410.10

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Solution

The fourth proportional to 221,920,243.65, 305,999,321.30 and 165,986,410.10 is: 228,873,797.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,920,243.65 : 305,999,321.30 = 165,986,410.10 : x
  2. Step 2: Convert to fraction form
    221,920,243.65/305,999,321.30 = 165,986,410.10/x
  3. Step 3: Cross multiply
    221,920,243.65x = 305,999,321.30 × 165,986,410.10
  4. Step 4: Simplify right side
    221,920,243.65x = 50,791,728,834,508,432
  5. Step 5: Solve for x
    x = 50,791,728,834,508,432/221,920,243.65
  6. Step 6: Final answer
    x = 228,873,797.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.