Home / 20,440,313.28-30,668,649.29-8,310,709.08

Finding the Fourth Proportional to 20,440,313.28, 30,668,649.29 and 8,310,709.08

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Solution

The fourth proportional to 20,440,313.28, 30,668,649.29 and 8,310,709.08 is: 12,469,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,313.28 : 30,668,649.29 = 8,310,709.08 : x
  2. Step 2: Convert to fraction form
    20,440,313.28/30,668,649.29 = 8,310,709.08/x
  3. Step 3: Cross multiply
    20,440,313.28x = 30,668,649.29 × 8,310,709.08
  4. Step 4: Simplify right side
    20,440,313.28x = 254,878,222,125,738.56
  5. Step 5: Solve for x
    x = 254,878,222,125,738.56/20,440,313.28
  6. Step 6: Final answer
    x = 12,469,389.22

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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.