Home / 540,917,992.91-811,108,316.12-172,404,993.71

Finding the Fourth Proportional to 540,917,992.91, 811,108,316.12 and 172,404,993.71

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Solution

The fourth proportional to 540,917,992.91, 811,108,316.12 and 172,404,993.71 is: 258,521,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,917,992.91 : 811,108,316.12 = 172,404,993.71 : x
  2. Step 2: Convert to fraction form
    540,917,992.91/811,108,316.12 = 172,404,993.71/x
  3. Step 3: Cross multiply
    540,917,992.91x = 811,108,316.12 × 172,404,993.71
  4. Step 4: Simplify right side
    540,917,992.91x = 139,839,124,139,963,040
  5. Step 5: Solve for x
    x = 139,839,124,139,963,040/540,917,992.91
  6. Step 6: Final answer
    x = 258,521,857.24

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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.