Home / 76,733,999.10-115,100,998.65-66,880,251.90

Finding the Fourth Proportional to 76,733,999.10, 115,100,998.65 and 66,880,251.90

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Solution

The fourth proportional to 76,733,999.10, 115,100,998.65 and 66,880,251.90 is: 100,320,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,733,999.10 : 115,100,998.65 = 66,880,251.90 : x
  2. Step 2: Convert to fraction form
    76,733,999.10/115,100,998.65 = 66,880,251.90/x
  3. Step 3: Cross multiply
    76,733,999.10x = 115,100,998.65 × 66,880,251.90
  4. Step 4: Simplify right side
    76,733,999.10x = 7,697,983,783,653,560
  5. Step 5: Solve for x
    x = 7,697,983,783,653,560/76,733,999.10
  6. Step 6: Final answer
    x = 100,320,377.85

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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.