Home / 6,413,458.60-9,620,187.90-3,978,015.40

Finding the Fourth Proportional to 6,413,458.60, 9,620,187.90 and 3,978,015.40

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Solution

The fourth proportional to 6,413,458.60, 9,620,187.90 and 3,978,015.40 is: 5,967,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,413,458.60 : 9,620,187.90 = 3,978,015.40 : x
  2. Step 2: Convert to fraction form
    6,413,458.60/9,620,187.90 = 3,978,015.40/x
  3. Step 3: Cross multiply
    6,413,458.60x = 9,620,187.90 × 3,978,015.40
  4. Step 4: Simplify right side
    6,413,458.60x = 38,269,255,617,093.66
  5. Step 5: Solve for x
    x = 38,269,255,617,093.66/6,413,458.60
  6. Step 6: Final answer
    x = 5,967,023.10

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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.