Home / 76,984,235.52-115,441,839.36-45,874,564.80

Finding the Fourth Proportional to 76,984,235.52, 115,441,839.36 and 45,874,564.80

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Solution

The fourth proportional to 76,984,235.52, 115,441,839.36 and 45,874,564.80 is: 68,791,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,984,235.52 : 115,441,839.36 = 45,874,564.80 : x
  2. Step 2: Convert to fraction form
    76,984,235.52/115,441,839.36 = 45,874,564.80/x
  3. Step 3: Cross multiply
    76,984,235.52x = 115,441,839.36 × 45,874,564.80
  4. Step 4: Simplify right side
    76,984,235.52x = 5,295,844,140,351,510
  5. Step 5: Solve for x
    x = 5,295,844,140,351,510/76,984,235.52
  6. Step 6: Final answer
    x = 68,791,280.51

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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.