Home / 7,178,808.55-9,906,786.62-3,915,693.33

Finding the Fourth Proportional to 7,178,808.55, 9,906,786.62 and 3,915,693.33

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Solution

The fourth proportional to 7,178,808.55, 9,906,786.62 and 3,915,693.33 is: 5,403,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,808.55 : 9,906,786.62 = 3,915,693.33 : x
  2. Step 2: Convert to fraction form
    7,178,808.55/9,906,786.62 = 3,915,693.33/x
  3. Step 3: Cross multiply
    7,178,808.55x = 9,906,786.62 × 3,915,693.33
  4. Step 4: Simplify right side
    7,178,808.55x = 38,791,938,289,667.24
  5. Step 5: Solve for x
    x = 38,791,938,289,667.24/7,178,808.55
  6. Step 6: Final answer
    x = 5,403,673.61

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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.