Home / 397,707,760.77-548,853,720.38-221,495,727.87

Finding the Fourth Proportional to 397,707,760.77, 548,853,720.38 and 221,495,727.87

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Solution

The fourth proportional to 397,707,760.77, 548,853,720.38 and 221,495,727.87 is: 305,673,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,707,760.77 : 548,853,720.38 = 221,495,727.87 : x
  2. Step 2: Convert to fraction form
    397,707,760.77/548,853,720.38 = 221,495,727.87/x
  3. Step 3: Cross multiply
    397,707,760.77x = 548,853,720.38 × 221,495,727.87
  4. Step 4: Simplify right side
    397,707,760.77x = 121,568,754,289,725,552
  5. Step 5: Solve for x
    x = 121,568,754,289,725,552/397,707,760.77
  6. Step 6: Final answer
    x = 305,673,578.14

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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.