Home / 6,398,971.20-9,598,456.80-5,769,115.20

Finding the Fourth Proportional to 6,398,971.20, 9,598,456.80 and 5,769,115.20

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Solution

The fourth proportional to 6,398,971.20, 9,598,456.80 and 5,769,115.20 is: 8,653,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,971.20 : 9,598,456.80 = 5,769,115.20 : x
  2. Step 2: Convert to fraction form
    6,398,971.20/9,598,456.80 = 5,769,115.20/x
  3. Step 3: Cross multiply
    6,398,971.20x = 9,598,456.80 × 5,769,115.20
  4. Step 4: Simplify right side
    6,398,971.20x = 55,374,603,021,423.37
  5. Step 5: Solve for x
    x = 55,374,603,021,423.37/6,398,971.20
  6. Step 6: Final answer
    x = 8,653,672.80

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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.