Home / 218,452,378.80-327,804,539.40-82,235,521.20

Finding the Fourth Proportional to 218,452,378.80, 327,804,539.40 and 82,235,521.20

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Solution

The fourth proportional to 218,452,378.80, 327,804,539.40 and 82,235,521.20 is: 123,400,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,452,378.80 : 327,804,539.40 = 82,235,521.20 : x
  2. Step 2: Convert to fraction form
    218,452,378.80/327,804,539.40 = 82,235,521.20/x
  3. Step 3: Cross multiply
    218,452,378.80x = 327,804,539.40 × 82,235,521.20
  4. Step 4: Simplify right side
    218,452,378.80x = 26,957,177,149,284,936
  5. Step 5: Solve for x
    x = 26,957,177,149,284,936/218,452,378.80
  6. Step 6: Final answer
    x = 123,400,703.15

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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.