Home / 319,421,010.54-440,802,322.88-172,743,294.54

Finding the Fourth Proportional to 319,421,010.54, 440,802,322.88 and 172,743,294.54

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Solution

The fourth proportional to 319,421,010.54, 440,802,322.88 and 172,743,294.54 is: 238,386,464.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,421,010.54 : 440,802,322.88 = 172,743,294.54 : x
  2. Step 2: Convert to fraction form
    319,421,010.54/440,802,322.88 = 172,743,294.54/x
  3. Step 3: Cross multiply
    319,421,010.54x = 440,802,322.88 × 172,743,294.54
  4. Step 4: Simplify right side
    319,421,010.54x = 76,145,645,494,312,304
  5. Step 5: Solve for x
    x = 76,145,645,494,312,304/319,421,010.54
  6. Step 6: Final answer
    x = 238,386,464.83

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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.