Home / 15,338,996.72-21,168,258.48-8,463,921.68

Finding the Fourth Proportional to 15,338,996.72, 21,168,258.48 and 8,463,921.68

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Solution

The fourth proportional to 15,338,996.72, 21,168,258.48 and 8,463,921.68 is: 11,680,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338,996.72 : 21,168,258.48 = 8,463,921.68 : x
  2. Step 2: Convert to fraction form
    15,338,996.72/21,168,258.48 = 8,463,921.68/x
  3. Step 3: Cross multiply
    15,338,996.72x = 21,168,258.48 × 8,463,921.68
  4. Step 4: Simplify right side
    15,338,996.72x = 179,166,481,876,715.84
  5. Step 5: Solve for x
    x = 179,166,481,876,715.84/15,338,996.72
  6. Step 6: Final answer
    x = 11,680,456.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.