Home / 137,517,273.48-189,823,200.01-81,762,560.88

Finding the Fourth Proportional to 137,517,273.48, 189,823,200.01 and 81,762,560.88

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Solution

The fourth proportional to 137,517,273.48, 189,823,200.01 and 81,762,560.88 is: 112,861,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,517,273.48 : 189,823,200.01 = 81,762,560.88 : x
  2. Step 2: Convert to fraction form
    137,517,273.48/189,823,200.01 = 81,762,560.88/x
  3. Step 3: Cross multiply
    137,517,273.48x = 189,823,200.01 × 81,762,560.88
  4. Step 4: Simplify right side
    137,517,273.48x = 15,520,430,947,865,876
  5. Step 5: Solve for x
    x = 15,520,430,947,865,876/137,517,273.48
  6. Step 6: Final answer
    x = 112,861,683.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.