Home / 319,421,013.17-440,802,326.50-172,743,297.17

Finding the Fourth Proportional to 319,421,013.17, 440,802,326.50 and 172,743,297.17

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Solution

The fourth proportional to 319,421,013.17, 440,802,326.50 and 172,743,297.17 is: 238,386,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,421,013.17 : 440,802,326.50 = 172,743,297.17 : x
  2. Step 2: Convert to fraction form
    319,421,013.17/440,802,326.50 = 172,743,297.17/x
  3. Step 3: Cross multiply
    319,421,013.17x = 440,802,326.50 × 172,743,297.17
  4. Step 4: Simplify right side
    319,421,013.17x = 76,145,647,277,180,992
  5. Step 5: Solve for x
    x = 76,145,647,277,180,992/319,421,013.17
  6. Step 6: Final answer
    x = 238,386,468.45

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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.