Home / 5,379,693.60-8,085,286.80-5,285,215.20

Finding the Fourth Proportional to 5,379,693.60, 8,085,286.80 and 5,285,215.20

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Solution

The fourth proportional to 5,379,693.60, 8,085,286.80 and 5,285,215.20 is: 7,943,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379,693.60 : 8,085,286.80 = 5,285,215.20 : x
  2. Step 2: Convert to fraction form
    5,379,693.60/8,085,286.80 = 5,285,215.20/x
  3. Step 3: Cross multiply
    5,379,693.60x = 8,085,286.80 × 5,285,215.20
  4. Step 4: Simplify right side
    5,379,693.60x = 42,732,480,691,719.36
  5. Step 5: Solve for x
    x = 42,732,480,691,719.36/5,379,693.60
  6. Step 6: Final answer
    x = 7,943,292.66

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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.