Home / 318,947,104.49-440,147,300.82-172,269,388.49

Finding the Fourth Proportional to 318,947,104.49, 440,147,300.82 and 172,269,388.49

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Solution

The fourth proportional to 318,947,104.49, 440,147,300.82 and 172,269,388.49 is: 237,731,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,947,104.49 : 440,147,300.82 = 172,269,388.49 : x
  2. Step 2: Convert to fraction form
    318,947,104.49/440,147,300.82 = 172,269,388.49/x
  3. Step 3: Cross multiply
    318,947,104.49x = 440,147,300.82 × 172,269,388.49
  4. Step 4: Simplify right side
    318,947,104.49x = 75,823,906,357,785,472
  5. Step 5: Solve for x
    x = 75,823,906,357,785,472/318,947,104.49
  6. Step 6: Final answer
    x = 237,731,916.33

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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.