Home / 258,979,892.80-388,407,631.20-149,568,462.40

Finding the Fourth Proportional to 258,979,892.80, 388,407,631.20 and 149,568,462.40

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Solution

The fourth proportional to 258,979,892.80, 388,407,631.20 and 149,568,462.40 is: 224,316,766.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,979,892.80 : 388,407,631.20 = 149,568,462.40 : x
  2. Step 2: Convert to fraction form
    258,979,892.80/388,407,631.20 = 149,568,462.40/x
  3. Step 3: Cross multiply
    258,979,892.80x = 388,407,631.20 × 149,568,462.40
  4. Step 4: Simplify right side
    258,979,892.80x = 58,093,532,183,010,264
  5. Step 5: Solve for x
    x = 58,093,532,183,010,264/258,979,892.80
  6. Step 6: Final answer
    x = 224,316,766.66

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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.