Home / 67,951,980.78-101,889,110.61-31,541,638.38

Finding the Fourth Proportional to 67,951,980.78, 101,889,110.61 and 31,541,638.38

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Solution

The fourth proportional to 67,951,980.78, 101,889,110.61 and 31,541,638.38 is: 47,294,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,951,980.78 : 101,889,110.61 = 31,541,638.38 : x
  2. Step 2: Convert to fraction form
    67,951,980.78/101,889,110.61 = 31,541,638.38/x
  3. Step 3: Cross multiply
    67,951,980.78x = 101,889,110.61 × 31,541,638.38
  4. Step 4: Simplify right side
    67,951,980.78x = 3,213,749,481,720,441
  5. Step 5: Solve for x
    x = 3,213,749,481,720,441/67,951,980.78
  6. Step 6: Final answer
    x = 47,294,419.45

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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.