Home / 409,272,949.26-613,912,081.10-163,650,219.28

Finding the Fourth Proportional to 409,272,949.26, 613,912,081.10 and 163,650,219.28

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Solution

The fourth proportional to 409,272,949.26, 613,912,081.10 and 163,650,219.28 is: 245,476,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,272,949.26 : 613,912,081.10 = 163,650,219.28 : x
  2. Step 2: Convert to fraction form
    409,272,949.26/613,912,081.10 = 163,650,219.28/x
  3. Step 3: Cross multiply
    409,272,949.26x = 613,912,081.10 × 163,650,219.28
  4. Step 4: Simplify right side
    409,272,949.26x = 100,466,846,688,303,120
  5. Step 5: Solve for x
    x = 100,466,846,688,303,120/409,272,949.26
  6. Step 6: Final answer
    x = 245,476,391.42

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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.