Home / 212,821,922.40-319,374,601.20-97,747,231.20

Finding the Fourth Proportional to 212,821,922.40, 319,374,601.20 and 97,747,231.20

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Solution

The fourth proportional to 212,821,922.40, 319,374,601.20 and 97,747,231.20 is: 146,685,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,821,922.40 : 319,374,601.20 = 97,747,231.20 : x
  2. Step 2: Convert to fraction form
    212,821,922.40/319,374,601.20 = 97,747,231.20/x
  3. Step 3: Cross multiply
    212,821,922.40x = 319,374,601.20 × 97,747,231.20
  4. Step 4: Simplify right side
    212,821,922.40x = 31,217,982,982,904,196
  5. Step 5: Solve for x
    x = 31,217,982,982,904,196/212,821,922.40
  6. Step 6: Final answer
    x = 146,685,936.44

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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.