Home / 308,687,211.66-425,399,640.20-303,013,414.68

Finding the Fourth Proportional to 308,687,211.66, 425,399,640.20 and 303,013,414.68

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Solution

The fourth proportional to 308,687,211.66, 425,399,640.20 and 303,013,414.68 is: 417,580,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,687,211.66 : 425,399,640.20 = 303,013,414.68 : x
  2. Step 2: Convert to fraction form
    308,687,211.66/425,399,640.20 = 303,013,414.68/x
  3. Step 3: Cross multiply
    308,687,211.66x = 425,399,640.20 × 303,013,414.68
  4. Step 4: Simplify right side
    308,687,211.66x = 128,901,797,579,442,544
  5. Step 5: Solve for x
    x = 128,901,797,579,442,544/308,687,211.66
  6. Step 6: Final answer
    x = 417,580,621.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.