Home / 87,652,629.31-120,949,995.43-50,494,938.90

Finding the Fourth Proportional to 87,652,629.31, 120,949,995.43 and 50,494,938.90

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Solution

The fourth proportional to 87,652,629.31, 120,949,995.43 and 50,494,938.90 is: 69,676,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,652,629.31 : 120,949,995.43 = 50,494,938.90 : x
  2. Step 2: Convert to fraction form
    87,652,629.31/120,949,995.43 = 50,494,938.90/x
  3. Step 3: Cross multiply
    87,652,629.31x = 120,949,995.43 × 50,494,938.90
  4. Step 4: Simplify right side
    87,652,629.31x = 6,107,362,629,193,129
  5. Step 5: Solve for x
    x = 6,107,362,629,193,129/87,652,629.31
  6. Step 6: Final answer
    x = 69,676,890.21

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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.