Home / 490,613,875.16-736,248,078.15-254,481,024.78

Finding the Fourth Proportional to 490,613,875.16, 736,248,078.15 and 254,481,024.78

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Solution

The fourth proportional to 490,613,875.16, 736,248,078.15 and 254,481,024.78 is: 381,891,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,613,875.16 : 736,248,078.15 = 254,481,024.78 : x
  2. Step 2: Convert to fraction form
    490,613,875.16/736,248,078.15 = 254,481,024.78/x
  3. Step 3: Cross multiply
    490,613,875.16x = 736,248,078.15 × 254,481,024.78
  4. Step 4: Simplify right side
    490,613,875.16x = 187,361,165,418,963,232
  5. Step 5: Solve for x
    x = 187,361,165,418,963,232/490,613,875.16
  6. Step 6: Final answer
    x = 381,891,289.48

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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.