Home / 212,893,956.25-319,394,871.23-65,348,996.54

Finding the Fourth Proportional to 212,893,956.25, 319,394,871.23 and 65,348,996.54

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Solution

The fourth proportional to 212,893,956.25, 319,394,871.23 and 65,348,996.54 is: 98,040,051.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,893,956.25 : 319,394,871.23 = 65,348,996.54 : x
  2. Step 2: Convert to fraction form
    212,893,956.25/319,394,871.23 = 65,348,996.54/x
  3. Step 3: Cross multiply
    212,893,956.25x = 319,394,871.23 × 65,348,996.54
  4. Step 4: Simplify right side
    212,893,956.25x = 20,872,134,332,979,296
  5. Step 5: Solve for x
    x = 20,872,134,332,979,296/212,893,956.25
  6. Step 6: Final answer
    x = 98,040,051.02

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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.