Home / 278,564,757.20-416,855,112.60-242,568,486.80

Finding the Fourth Proportional to 278,564,757.20, 416,855,112.60 and 242,568,486.80

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Solution

The fourth proportional to 278,564,757.20, 416,855,112.60 and 242,568,486.80 is: 362,988,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,564,757.20 : 416,855,112.60 = 242,568,486.80 : x
  2. Step 2: Convert to fraction form
    278,564,757.20/416,855,112.60 = 242,568,486.80/x
  3. Step 3: Cross multiply
    278,564,757.20x = 416,855,112.60 × 242,568,486.80
  4. Step 4: Simplify right side
    278,564,757.20x = 101,115,913,878,225,632
  5. Step 5: Solve for x
    x = 101,115,913,878,225,632/278,564,757.20
  6. Step 6: Final answer
    x = 362,988,896.71

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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.