Home / 218,452,389.80-327,804,555.90-82,235,532.20

Finding the Fourth Proportional to 218,452,389.80, 327,804,555.90 and 82,235,532.20

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Solution

The fourth proportional to 218,452,389.80, 327,804,555.90 and 82,235,532.20 is: 123,400,719.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,452,389.80 : 327,804,555.90 = 82,235,532.20 : x
  2. Step 2: Convert to fraction form
    218,452,389.80/327,804,555.90 = 82,235,532.20/x
  3. Step 3: Cross multiply
    218,452,389.80x = 327,804,555.90 × 82,235,532.20
  4. Step 4: Simplify right side
    218,452,389.80x = 26,957,182,112,021,148
  5. Step 5: Solve for x
    x = 26,957,182,112,021,148/218,452,389.80
  6. Step 6: Final answer
    x = 123,400,719.66

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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.