Home / 309,729,731.42-464,599,523.54-172,428,034.34

Finding the Fourth Proportional to 309,729,731.42, 464,599,523.54 and 172,428,034.34

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Solution

The fourth proportional to 309,729,731.42, 464,599,523.54 and 172,428,034.34 is: 258,644,794.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,729,731.42 : 464,599,523.54 = 172,428,034.34 : x
  2. Step 2: Convert to fraction form
    309,729,731.42/464,599,523.54 = 172,428,034.34/x
  3. Step 3: Cross multiply
    309,729,731.42x = 464,599,523.54 × 172,428,034.34
  4. Step 4: Simplify right side
    309,729,731.42x = 80,109,982,596,117,632
  5. Step 5: Solve for x
    x = 80,109,982,596,117,632/309,729,731.42
  6. Step 6: Final answer
    x = 258,644,794.06

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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.