Home / 215,990,578-324,048,610.22-77,813,556.04

Finding the Fourth Proportional to 215,990,578, 324,048,610.22 and 77,813,556.04

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Solution

The fourth proportional to 215,990,578, 324,048,610.22 and 77,813,556.04 is: 116,742,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,990,578 : 324,048,610.22 = 77,813,556.04 : x
  2. Step 2: Convert to fraction form
    215,990,578/324,048,610.22 = 77,813,556.04/x
  3. Step 3: Cross multiply
    215,990,578x = 324,048,610.22 × 77,813,556.04
  4. Step 4: Simplify right side
    215,990,578x = 25,215,374,691,038,092
  5. Step 5: Solve for x
    x = 25,215,374,691,038,092/215,990,578
  6. Step 6: Final answer
    x = 116,742,938.16

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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.