Home / 20,191,504.20-30,287,256.30-7,407,760.20

Finding the Fourth Proportional to 20,191,504.20, 30,287,256.30 and 7,407,760.20

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Solution

The fourth proportional to 20,191,504.20, 30,287,256.30 and 7,407,760.20 is: 11,111,640.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191,504.20 : 30,287,256.30 = 7,407,760.20 : x
  2. Step 2: Convert to fraction form
    20,191,504.20/30,287,256.30 = 7,407,760.20/x
  3. Step 3: Cross multiply
    20,191,504.20x = 30,287,256.30 × 7,407,760.20
  4. Step 4: Simplify right side
    20,191,504.20x = 224,360,731,786,339.28
  5. Step 5: Solve for x
    x = 224,360,731,786,339.28/20,191,504.20
  6. Step 6: Final answer
    x = 11,111,640.30

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Double scale
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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.