Home / 5,220,879.48-7,839,006.80-2,919,880.78

Finding the Fourth Proportional to 5,220,879.48, 7,839,006.80 and 2,919,880.78

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Solution

The fourth proportional to 5,220,879.48, 7,839,006.80 and 2,919,880.78 is: 4,384,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220,879.48 : 7,839,006.80 = 2,919,880.78 : x
  2. Step 2: Convert to fraction form
    5,220,879.48/7,839,006.80 = 2,919,880.78/x
  3. Step 3: Cross multiply
    5,220,879.48x = 7,839,006.80 × 2,919,880.78
  4. Step 4: Simplify right side
    5,220,879.48x = 22,888,965,255,412.38
  5. Step 5: Solve for x
    x = 22,888,965,255,412.38/5,220,879.48
  6. Step 6: Final answer
    x = 4,384,120.60

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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.