Home / 91,844,813.20-137,767,219.80-76,840,243.60

Finding the Fourth Proportional to 91,844,813.20, 137,767,219.80 and 76,840,243.60

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Solution

The fourth proportional to 91,844,813.20, 137,767,219.80 and 76,840,243.60 is: 115,260,365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,844,813.20 : 137,767,219.80 = 76,840,243.60 : x
  2. Step 2: Convert to fraction form
    91,844,813.20/137,767,219.80 = 76,840,243.60/x
  3. Step 3: Cross multiply
    91,844,813.20x = 137,767,219.80 × 76,840,243.60
  4. Step 4: Simplify right side
    91,844,813.20x = 10,586,066,729,526,744
  5. Step 5: Solve for x
    x = 10,586,066,729,526,744/91,844,813.20
  6. Step 6: Final answer
    x = 115,260,365.40

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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.