Home / 79,760,936.80-119,641,405.20-68,281,811.20

Finding the Fourth Proportional to 79,760,936.80, 119,641,405.20 and 68,281,811.20

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Solution

The fourth proportional to 79,760,936.80, 119,641,405.20 and 68,281,811.20 is: 102,422,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,760,936.80 : 119,641,405.20 = 68,281,811.20 : x
  2. Step 2: Convert to fraction form
    79,760,936.80/119,641,405.20 = 68,281,811.20/x
  3. Step 3: Cross multiply
    79,760,936.80x = 119,641,405.20 × 68,281,811.20
  4. Step 4: Simplify right side
    79,760,936.80x = 8,169,331,841,569,099
  5. Step 5: Solve for x
    x = 8,169,331,841,569,099/79,760,936.80
  6. Step 6: Final answer
    x = 102,422,716.80

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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.