Home / 404,644,639.11-558,423,142.52-247,981,491.78

Finding the Fourth Proportional to 404,644,639.11, 558,423,142.52 and 247,981,491.78

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Solution

The fourth proportional to 404,644,639.11, 558,423,142.52 and 247,981,491.78 is: 342,222,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,644,639.11 : 558,423,142.52 = 247,981,491.78 : x
  2. Step 2: Convert to fraction form
    404,644,639.11/558,423,142.52 = 247,981,491.78/x
  3. Step 3: Cross multiply
    404,644,639.11x = 558,423,142.52 × 247,981,491.78
  4. Step 4: Simplify right side
    404,644,639.11x = 138,478,603,925,345,232
  5. Step 5: Solve for x
    x = 138,478,603,925,345,232/404,644,639.11
  6. Step 6: Final answer
    x = 342,222,756.81

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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.