Home / 81,092,787.76-111,907,156.20-43,922,143.28

Finding the Fourth Proportional to 81,092,787.76, 111,907,156.20 and 43,922,143.28

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Solution

The fourth proportional to 81,092,787.76, 111,907,156.20 and 43,922,143.28 is: 60,612,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,092,787.76 : 111,907,156.20 = 43,922,143.28 : x
  2. Step 2: Convert to fraction form
    81,092,787.76/111,907,156.20 = 43,922,143.28/x
  3. Step 3: Cross multiply
    81,092,787.76x = 111,907,156.20 × 43,922,143.28
  4. Step 4: Simplify right side
    81,092,787.76x = 4,915,202,148,673,741
  5. Step 5: Solve for x
    x = 4,915,202,148,673,741/81,092,787.76
  6. Step 6: Final answer
    x = 60,612,075.19

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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.