Home / 518,637,335.92-715,721,665.17-280,482,515.18

Finding the Fourth Proportional to 518,637,335.92, 715,721,665.17 and 280,482,515.18

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Solution

The fourth proportional to 518,637,335.92, 715,721,665.17 and 280,482,515.18 is: 387,067,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,637,335.92 : 715,721,665.17 = 280,482,515.18 : x
  2. Step 2: Convert to fraction form
    518,637,335.92/715,721,665.17 = 280,482,515.18/x
  3. Step 3: Cross multiply
    518,637,335.92x = 715,721,665.17 × 280,482,515.18
  4. Step 4: Simplify right side
    518,637,335.92x = 200,747,412,814,296,992
  5. Step 5: Solve for x
    x = 200,747,412,814,296,992/518,637,335.92
  6. Step 6: Final answer
    x = 387,067,029.14

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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.