Home / 3,945,165.60-5,915,998.80-1,815,902.40

Finding the Fourth Proportional to 3,945,165.60, 5,915,998.80 and 1,815,902.40

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Solution

The fourth proportional to 3,945,165.60, 5,915,998.80 and 1,815,902.40 is: 2,723,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945,165.60 : 5,915,998.80 = 1,815,902.40 : x
  2. Step 2: Convert to fraction form
    3,945,165.60/5,915,998.80 = 1,815,902.40/x
  3. Step 3: Cross multiply
    3,945,165.60x = 5,915,998.80 × 1,815,902.40
  4. Step 4: Simplify right side
    3,945,165.60x = 10,742,876,419,317.12
  5. Step 5: Solve for x
    x = 10,742,876,419,317.12/3,945,165.60
  6. Step 6: Final answer
    x = 2,723,048.28

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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.