Home / 78,796,199.87-108,737,620.75-43,515,497.81

Finding the Fourth Proportional to 78,796,199.87, 108,737,620.75 and 43,515,497.81

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Solution

The fourth proportional to 78,796,199.87, 108,737,620.75 and 43,515,497.81 is: 60,050,760.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,796,199.87 : 108,737,620.75 = 43,515,497.81 : x
  2. Step 2: Convert to fraction form
    78,796,199.87/108,737,620.75 = 43,515,497.81/x
  3. Step 3: Cross multiply
    78,796,199.87x = 108,737,620.75 × 43,515,497.81
  4. Step 4: Simplify right side
    78,796,199.87x = 4,731,771,697,121,942
  5. Step 5: Solve for x
    x = 4,731,771,697,121,942/78,796,199.87
  6. Step 6: Final answer
    x = 60,050,760.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.