Home / 7,240,999.01-9,992,585.19-3,978,025.12

Finding the Fourth Proportional to 7,240,999.01, 9,992,585.19 and 3,978,025.12

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Solution

The fourth proportional to 7,240,999.01, 9,992,585.19 and 3,978,025.12 is: 5,489,678.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240,999.01 : 9,992,585.19 = 3,978,025.12 : x
  2. Step 2: Convert to fraction form
    7,240,999.01/9,992,585.19 = 3,978,025.12/x
  3. Step 3: Cross multiply
    7,240,999.01x = 9,992,585.19 × 3,978,025.12
  4. Step 4: Simplify right side
    7,240,999.01x = 39,750,754,849,597.05
  5. Step 5: Solve for x
    x = 39,750,754,849,597.05/7,240,999.01
  6. Step 6: Final answer
    x = 5,489,678.26

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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.