Home / 7,169,715.16-9,894,081.80-3,906,556.90

Finding the Fourth Proportional to 7,169,715.16, 9,894,081.80 and 3,906,556.90

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Solution

The fourth proportional to 7,169,715.16, 9,894,081.80 and 3,906,556.90 is: 5,390,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,715.16 : 9,894,081.80 = 3,906,556.90 : x
  2. Step 2: Convert to fraction form
    7,169,715.16/9,894,081.80 = 3,906,556.90/x
  3. Step 3: Cross multiply
    7,169,715.16x = 9,894,081.80 × 3,906,556.90
  4. Step 4: Simplify right side
    7,169,715.16x = 38,651,793,524,954.42
  5. Step 5: Solve for x
    x = 38,651,793,524,954.42/7,169,715.16
  6. Step 6: Final answer
    x = 5,390,980.35

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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.