Home / 768,338,409.60-1,151,801,410.08-276,931,414.08

Finding the Fourth Proportional to 768,338,409.60, 1,151,801,410.08 and 276,931,414.08

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Solution

The fourth proportional to 768,338,409.60, 1,151,801,410.08 and 276,931,414.08 is: 415,142,584.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,338,409.60 : 1,151,801,410.08 = 276,931,414.08 : x
  2. Step 2: Convert to fraction form
    768,338,409.60/1,151,801,410.08 = 276,931,414.08/x
  3. Step 3: Cross multiply
    768,338,409.60x = 1,151,801,410.08 × 276,931,414.08
  4. Step 4: Simplify right side
    768,338,409.60x = 318,969,993,232,792,320
  5. Step 5: Solve for x
    x = 318,969,993,232,792,320/768,338,409.60
  6. Step 6: Final answer
    x = 415,142,584.63

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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.