Home / 137,217,999.80-205,826,999.70-73,517,007.80

Finding the Fourth Proportional to 137,217,999.80, 205,826,999.70 and 73,517,007.80

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Solution

The fourth proportional to 137,217,999.80, 205,826,999.70 and 73,517,007.80 is: 110,275,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,217,999.80 : 205,826,999.70 = 73,517,007.80 : x
  2. Step 2: Convert to fraction form
    137,217,999.80/205,826,999.70 = 73,517,007.80/x
  3. Step 3: Cross multiply
    137,217,999.80x = 205,826,999.70 × 73,517,007.80
  4. Step 4: Simplify right side
    137,217,999.80x = 15,131,785,142,395,496
  5. Step 5: Solve for x
    x = 15,131,785,142,395,496/137,217,999.80
  6. Step 6: Final answer
    x = 110,275,511.70

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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.