Home / 81,863,600.30-122,795,400.45-71,785,904.30

Finding the Fourth Proportional to 81,863,600.30, 122,795,400.45 and 71,785,904.30

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Solution

The fourth proportional to 81,863,600.30, 122,795,400.45 and 71,785,904.30 is: 107,678,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863,600.30 : 122,795,400.45 = 71,785,904.30 : x
  2. Step 2: Convert to fraction form
    81,863,600.30/122,795,400.45 = 71,785,904.30/x
  3. Step 3: Cross multiply
    81,863,600.30x = 122,795,400.45 × 71,785,904.30
  4. Step 4: Simplify right side
    81,863,600.30x = 8,814,978,865,183,877
  5. Step 5: Solve for x
    x = 8,814,978,865,183,877/81,863,600.30
  6. Step 6: Final answer
    x = 107,678,856.45

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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.