Home / 67,951,981.78-101,889,112.11-31,541,639.38

Finding the Fourth Proportional to 67,951,981.78, 101,889,112.11 and 31,541,639.38

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Solution

The fourth proportional to 67,951,981.78, 101,889,112.11 and 31,541,639.38 is: 47,294,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,951,981.78 : 101,889,112.11 = 31,541,639.38 : x
  2. Step 2: Convert to fraction form
    67,951,981.78/101,889,112.11 = 31,541,639.38/x
  3. Step 3: Cross multiply
    67,951,981.78x = 101,889,112.11 × 31,541,639.38
  4. Step 4: Simplify right side
    67,951,981.78x = 3,213,749,630,922,011
  5. Step 5: Solve for x
    x = 3,213,749,630,922,011/67,951,981.78
  6. Step 6: Final answer
    x = 47,294,420.95

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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.