Home / 78,624,067.60-117,936,101.40-55,665,816.40

Finding the Fourth Proportional to 78,624,067.60, 117,936,101.40 and 55,665,816.40

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Solution

The fourth proportional to 78,624,067.60, 117,936,101.40 and 55,665,816.40 is: 83,498,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,624,067.60 : 117,936,101.40 = 55,665,816.40 : x
  2. Step 2: Convert to fraction form
    78,624,067.60/117,936,101.40 = 55,665,816.40/x
  3. Step 3: Cross multiply
    78,624,067.60x = 117,936,101.40 × 55,665,816.40
  4. Step 4: Simplify right side
    78,624,067.60x = 6,565,009,367,464,183
  5. Step 5: Solve for x
    x = 6,565,009,367,464,183/78,624,067.60
  6. Step 6: Final answer
    x = 83,498,724.60

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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.