Home / 79,135,727.49-109,213,362.39-49,792,212.68

Finding the Fourth Proportional to 79,135,727.49, 109,213,362.39 and 49,792,212.68

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Solution

The fourth proportional to 79,135,727.49, 109,213,362.39 and 49,792,212.68 is: 68,717,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,135,727.49 : 109,213,362.39 = 49,792,212.68 : x
  2. Step 2: Convert to fraction form
    79,135,727.49/109,213,362.39 = 49,792,212.68/x
  3. Step 3: Cross multiply
    79,135,727.49x = 109,213,362.39 × 49,792,212.68
  4. Step 4: Simplify right side
    79,135,727.49x = 5,437,974,967,121,530
  5. Step 5: Solve for x
    x = 5,437,974,967,121,530/79,135,727.49
  6. Step 6: Final answer
    x = 68,717,065.47

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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.