Home / 217,745,515.80-326,618,273.70-137,123,947.80

Finding the Fourth Proportional to 217,745,515.80, 326,618,273.70 and 137,123,947.80

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Solution

The fourth proportional to 217,745,515.80, 326,618,273.70 and 137,123,947.80 is: 205,685,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,745,515.80 : 326,618,273.70 = 137,123,947.80 : x
  2. Step 2: Convert to fraction form
    217,745,515.80/326,618,273.70 = 137,123,947.80/x
  3. Step 3: Cross multiply
    217,745,515.80x = 326,618,273.70 × 137,123,947.80
  4. Step 4: Simplify right side
    217,745,515.80x = 44,787,187,113,364,912
  5. Step 5: Solve for x
    x = 44,787,187,113,364,912/217,745,515.80
  6. Step 6: Final answer
    x = 205,685,921.70

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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.