Home / 217,314,613.40-325,859,945.70-80,929,794.20

Finding the Fourth Proportional to 217,314,613.40, 325,859,945.70 and 80,929,794.20

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Solution

The fourth proportional to 217,314,613.40, 325,859,945.70 and 80,929,794.20 is: 121,352,991.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,314,613.40 : 325,859,945.70 = 80,929,794.20 : x
  2. Step 2: Convert to fraction form
    217,314,613.40/325,859,945.70 = 80,929,794.20/x
  3. Step 3: Cross multiply
    217,314,613.40x = 325,859,945.70 × 80,929,794.20
  4. Step 4: Simplify right side
    217,314,613.40x = 26,371,778,343,524,176
  5. Step 5: Solve for x
    x = 26,371,778,343,524,176/217,314,613.40
  6. Step 6: Final answer
    x = 121,352,991.09

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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.