Home / 7,240,999.26-9,992,585.54-3,978,025.37

Finding the Fourth Proportional to 7,240,999.26, 9,992,585.54 and 3,978,025.37

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Solution

The fourth proportional to 7,240,999.26, 9,992,585.54 and 3,978,025.37 is: 5,489,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240,999.26 : 9,992,585.54 = 3,978,025.37 : x
  2. Step 2: Convert to fraction form
    7,240,999.26/9,992,585.54 = 3,978,025.37/x
  3. Step 3: Cross multiply
    7,240,999.26x = 9,992,585.54 × 3,978,025.37
  4. Step 4: Simplify right side
    7,240,999.26x = 39,750,758,720,162.10
  5. Step 5: Solve for x
    x = 39,750,758,720,162.10/7,240,999.26
  6. Step 6: Final answer
    x = 5,489,678.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.