Home / 218,490,974.80-327,862,433.40-82,274,117.20

Finding the Fourth Proportional to 218,490,974.80, 327,862,433.40 and 82,274,117.20

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Solution

The fourth proportional to 218,490,974.80, 327,862,433.40 and 82,274,117.20 is: 123,458,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,490,974.80 : 327,862,433.40 = 82,274,117.20 : x
  2. Step 2: Convert to fraction form
    218,490,974.80/327,862,433.40 = 82,274,117.20/x
  3. Step 3: Cross multiply
    218,490,974.80x = 327,862,433.40 × 82,274,117.20
  4. Step 4: Simplify right side
    218,490,974.80x = 26,974,592,271,028,792
  5. Step 5: Solve for x
    x = 26,974,592,271,028,792/218,490,974.80
  6. Step 6: Final answer
    x = 123,458,611.03

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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.