Home / 5,220,878.82-7,839,005.81-2,919,880.12

Finding the Fourth Proportional to 5,220,878.82, 7,839,005.81 and 2,919,880.12

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Solution

The fourth proportional to 5,220,878.82, 7,839,005.81 and 2,919,880.12 is: 4,384,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220,878.82 : 7,839,005.81 = 2,919,880.12 : x
  2. Step 2: Convert to fraction form
    5,220,878.82/7,839,005.81 = 2,919,880.12/x
  3. Step 3: Cross multiply
    5,220,878.82x = 7,839,005.81 × 2,919,880.12
  4. Step 4: Simplify right side
    5,220,878.82x = 22,888,957,225,783.18
  5. Step 5: Solve for x
    x = 22,888,957,225,783.18/5,220,878.82
  6. Step 6: Final answer
    x = 4,384,119.61

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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.