Home / 80,123,986.54-120,185,792.91-52,631,443.34

Finding the Fourth Proportional to 80,123,986.54, 120,185,792.91 and 52,631,443.34

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Solution

The fourth proportional to 80,123,986.54, 120,185,792.91 and 52,631,443.34 is: 78,947,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,123,986.54 : 120,185,792.91 = 52,631,443.34 : x
  2. Step 2: Convert to fraction form
    80,123,986.54/120,185,792.91 = 52,631,443.34/x
  3. Step 3: Cross multiply
    80,123,986.54x = 120,185,792.91 × 52,631,443.34
  4. Step 4: Simplify right side
    80,123,986.54x = 6,325,551,749,815,639
  5. Step 5: Solve for x
    x = 6,325,551,749,815,639/80,123,986.54
  6. Step 6: Final answer
    x = 78,947,042.24

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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.