Home / 81,366,893.70-122,050,340.55-49,055,280.90

Finding the Fourth Proportional to 81,366,893.70, 122,050,340.55 and 49,055,280.90

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Solution

The fourth proportional to 81,366,893.70, 122,050,340.55 and 49,055,280.90 is: 73,582,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,366,893.70 : 122,050,340.55 = 49,055,280.90 : x
  2. Step 2: Convert to fraction form
    81,366,893.70/122,050,340.55 = 49,055,280.90/x
  3. Step 3: Cross multiply
    81,366,893.70x = 122,050,340.55 × 49,055,280.90
  4. Step 4: Simplify right side
    81,366,893.70x = 5,987,213,739,620,910
  5. Step 5: Solve for x
    x = 5,987,213,739,620,910/81,366,893.70
  6. Step 6: Final answer
    x = 73,582,921.35

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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.