Home / 81,331,574.70-122,091,840.45-49,019,961.90

Finding the Fourth Proportional to 81,331,574.70, 122,091,840.45 and 49,019,961.90

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Solution

The fourth proportional to 81,331,574.70, 122,091,840.45 and 49,019,961.90 is: 73,586,886.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331,574.70 : 122,091,840.45 = 49,019,961.90 : x
  2. Step 2: Convert to fraction form
    81,331,574.70/122,091,840.45 = 49,019,961.90/x
  3. Step 3: Cross multiply
    81,331,574.70x = 122,091,840.45 × 49,019,961.90
  4. Step 4: Simplify right side
    81,331,574.70x = 5,984,937,367,159,879
  5. Step 5: Solve for x
    x = 5,984,937,367,159,879/81,331,574.70
  6. Step 6: Final answer
    x = 73,586,886.63

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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.