Home / 100,051,768.20-137,961,797.94-65,179,790.76

Finding the Fourth Proportional to 100,051,768.20, 137,961,797.94 and 65,179,790.76

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Solution

The fourth proportional to 100,051,768.20, 137,961,797.94 and 65,179,790.76 is: 89,876,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,051,768.20 : 137,961,797.94 = 65,179,790.76 : x
  2. Step 2: Convert to fraction form
    100,051,768.20/137,961,797.94 = 65,179,790.76/x
  3. Step 3: Cross multiply
    100,051,768.20x = 137,961,797.94 × 65,179,790.76
  4. Step 4: Simplify right side
    100,051,768.20x = 8,992,321,122,602,599
  5. Step 5: Solve for x
    x = 8,992,321,122,602,599/100,051,768.20
  6. Step 6: Final answer
    x = 89,876,683.68

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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.