Home / 6,615,721-9,921,789.38-1,822,270.20

Finding the Fourth Proportional to 6,615,721, 9,921,789.38 and 1,822,270.20

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Solution

The fourth proportional to 6,615,721, 9,921,789.38 and 1,822,270.20 is: 2,732,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615,721 : 9,921,789.38 = 1,822,270.20 : x
  2. Step 2: Convert to fraction form
    6,615,721/9,921,789.38 = 1,822,270.20/x
  3. Step 3: Cross multiply
    6,615,721x = 9,921,789.38 × 1,822,270.20
  4. Step 4: Simplify right side
    6,615,721x = 18,080,181,117,850.48
  5. Step 5: Solve for x
    x = 18,080,181,117,850.48/6,615,721
  6. Step 6: Final answer
    x = 2,732,911.67

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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.