Home / 768,194,229.12-1,152,340,858.56-270,143,645.28

Finding the Fourth Proportional to 768,194,229.12, 1,152,340,858.56 and 270,143,645.28

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Solution

The fourth proportional to 768,194,229.12, 1,152,340,858.56 and 270,143,645.28 is: 405,232,880.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,194,229.12 : 1,152,340,858.56 = 270,143,645.28 : x
  2. Step 2: Convert to fraction form
    768,194,229.12/1,152,340,858.56 = 270,143,645.28/x
  3. Step 3: Cross multiply
    768,194,229.12x = 1,152,340,858.56 × 270,143,645.28
  4. Step 4: Simplify right side
    768,194,229.12x = 311,297,560,136,483,264
  5. Step 5: Solve for x
    x = 311,297,560,136,483,264/768,194,229.12
  6. Step 6: Final answer
    x = 405,232,880.35

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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.