Home / 20,391,806.70-30,587,710.05-11,321,880.30

Finding the Fourth Proportional to 20,391,806.70, 30,587,710.05 and 11,321,880.30

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Solution

The fourth proportional to 20,391,806.70, 30,587,710.05 and 11,321,880.30 is: 16,982,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,806.70 : 30,587,710.05 = 11,321,880.30 : x
  2. Step 2: Convert to fraction form
    20,391,806.70/30,587,710.05 = 11,321,880.30/x
  3. Step 3: Cross multiply
    20,391,806.70x = 30,587,710.05 × 11,321,880.30
  4. Step 4: Simplify right side
    20,391,806.70x = 346,310,391,837,207.06
  5. Step 5: Solve for x
    x = 346,310,391,837,207.06/20,391,806.70
  6. Step 6: Final answer
    x = 16,982,820.45

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Similar ratio
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1.5x scale

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.