Home / 76,734,133.60-115,101,200.40-55,319,029.60

Finding the Fourth Proportional to 76,734,133.60, 115,101,200.40 and 55,319,029.60

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Solution

The fourth proportional to 76,734,133.60, 115,101,200.40 and 55,319,029.60 is: 82,978,544.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,734,133.60 : 115,101,200.40 = 55,319,029.60 : x
  2. Step 2: Convert to fraction form
    76,734,133.60/115,101,200.40 = 55,319,029.60/x
  3. Step 3: Cross multiply
    76,734,133.60x = 115,101,200.40 × 55,319,029.60
  4. Step 4: Simplify right side
    76,734,133.60x = 6,367,286,711,923,132
  5. Step 5: Solve for x
    x = 6,367,286,711,923,132/76,734,133.60
  6. Step 6: Final answer
    x = 82,978,544.40

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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.