Home / 7,178,881.96-9,906,887.82-3,915,766.79

Finding the Fourth Proportional to 7,178,881.96, 9,906,887.82 and 3,915,766.79

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Solution

The fourth proportional to 7,178,881.96, 9,906,887.82 and 3,915,766.79 is: 5,403,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,881.96 : 9,906,887.82 = 3,915,766.79 : x
  2. Step 2: Convert to fraction form
    7,178,881.96/9,906,887.82 = 3,915,766.79/x
  3. Step 3: Cross multiply
    7,178,881.96x = 9,906,887.82 × 3,915,766.79
  4. Step 4: Simplify right side
    7,178,881.96x = 38,793,062,317,811.50
  5. Step 5: Solve for x
    x = 38,793,062,317,811.50/7,178,881.96
  6. Step 6: Final answer
    x = 5,403,774.92

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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.