Home / 319,421,122.44-440,802,476.92-172,743,406.44

Finding the Fourth Proportional to 319,421,122.44, 440,802,476.92 and 172,743,406.44

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Solution

The fourth proportional to 319,421,122.44, 440,802,476.92 and 172,743,406.44 is: 238,386,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,421,122.44 : 440,802,476.92 = 172,743,406.44 : x
  2. Step 2: Convert to fraction form
    319,421,122.44/440,802,476.92 = 172,743,406.44/x
  3. Step 3: Cross multiply
    319,421,122.44x = 440,802,476.92 × 172,743,406.44
  4. Step 4: Simplify right side
    319,421,122.44x = 76,145,721,430,350,288
  5. Step 5: Solve for x
    x = 76,145,721,430,350,288/319,421,122.44
  6. Step 6: Final answer
    x = 238,386,619.05

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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.