Home / 117,431,378.40-176,147,067.60-85,014,789.60

Finding the Fourth Proportional to 117,431,378.40, 176,147,067.60 and 85,014,789.60

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Solution

The fourth proportional to 117,431,378.40, 176,147,067.60 and 85,014,789.60 is: 127,522,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,431,378.40 : 176,147,067.60 = 85,014,789.60 : x
  2. Step 2: Convert to fraction form
    117,431,378.40/176,147,067.60 = 85,014,789.60/x
  3. Step 3: Cross multiply
    117,431,378.40x = 176,147,067.60 × 85,014,789.60
  4. Step 4: Simplify right side
    117,431,378.40x = 14,975,105,890,670,976
  5. Step 5: Solve for x
    x = 14,975,105,890,670,976/117,431,378.40
  6. Step 6: Final answer
    x = 127,522,184.40

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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.