Home / 81,459,116.10-122,188,674.15-47,021,739.30

Finding the Fourth Proportional to 81,459,116.10, 122,188,674.15 and 47,021,739.30

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Solution

The fourth proportional to 81,459,116.10, 122,188,674.15 and 47,021,739.30 is: 70,532,608.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,459,116.10 : 122,188,674.15 = 47,021,739.30 : x
  2. Step 2: Convert to fraction form
    81,459,116.10/122,188,674.15 = 47,021,739.30/x
  3. Step 3: Cross multiply
    81,459,116.10x = 122,188,674.15 × 47,021,739.30
  4. Step 4: Simplify right side
    81,459,116.10x = 5,745,523,981,293,949
  5. Step 5: Solve for x
    x = 5,745,523,981,293,949/81,459,116.10
  6. Step 6: Final answer
    x = 70,532,608.95

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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.