Home / 75,816,086.40-113,724,129.60-72,840,016.80

Finding the Fourth Proportional to 75,816,086.40, 113,724,129.60 and 72,840,016.80

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Solution

The fourth proportional to 75,816,086.40, 113,724,129.60 and 72,840,016.80 is: 109,260,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,816,086.40 : 113,724,129.60 = 72,840,016.80 : x
  2. Step 2: Convert to fraction form
    75,816,086.40/113,724,129.60 = 72,840,016.80/x
  3. Step 3: Cross multiply
    75,816,086.40x = 113,724,129.60 × 72,840,016.80
  4. Step 4: Simplify right side
    75,816,086.40x = 8,283,667,510,629,377
  5. Step 5: Solve for x
    x = 8,283,667,510,629,377/75,816,086.40
  6. Step 6: Final answer
    x = 109,260,025.20

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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.