Home / 98,419,467.20-147,629,200.80-91,253,105.60

Finding the Fourth Proportional to 98,419,467.20, 147,629,200.80 and 91,253,105.60

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Solution

The fourth proportional to 98,419,467.20, 147,629,200.80 and 91,253,105.60 is: 136,879,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,419,467.20 : 147,629,200.80 = 91,253,105.60 : x
  2. Step 2: Convert to fraction form
    98,419,467.20/147,629,200.80 = 91,253,105.60/x
  3. Step 3: Cross multiply
    98,419,467.20x = 147,629,200.80 × 91,253,105.60
  4. Step 4: Simplify right side
    98,419,467.20x = 13,471,623,050,246,004
  5. Step 5: Solve for x
    x = 13,471,623,050,246,004/98,419,467.20
  6. Step 6: Final answer
    x = 136,879,658.40

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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.