Home / 276,511,658.45-414,477,790.79-128,837,452.30

Finding the Fourth Proportional to 276,511,658.45, 414,477,790.79 and 128,837,452.30

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Solution

The fourth proportional to 276,511,658.45, 414,477,790.79 and 128,837,452.30 is: 193,121,197.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,511,658.45 : 414,477,790.79 = 128,837,452.30 : x
  2. Step 2: Convert to fraction form
    276,511,658.45/414,477,790.79 = 128,837,452.30/x
  3. Step 3: Cross multiply
    276,511,658.45x = 414,477,790.79 × 128,837,452.30
  4. Step 4: Simplify right side
    276,511,658.45x = 53,400,262,598,635,624
  5. Step 5: Solve for x
    x = 53,400,262,598,635,624/276,511,658.45
  6. Step 6: Final answer
    x = 193,121,197.49

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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.