Home / 20,786,203.28-31,170,207-11,068,769.36

Finding the Fourth Proportional to 20,786,203.28, 31,170,207 and 11,068,769.36

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Solution

The fourth proportional to 20,786,203.28, 31,170,207 and 11,068,769.36 is: 16,598,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786,203.28 : 31,170,207 = 11,068,769.36 : x
  2. Step 2: Convert to fraction form
    20,786,203.28/31,170,207 = 11,068,769.36/x
  3. Step 3: Cross multiply
    20,786,203.28x = 31,170,207 × 11,068,769.36
  4. Step 4: Simplify right side
    20,786,203.28x = 345,015,832,186,457.50
  5. Step 5: Solve for x
    x = 345,015,832,186,457.50/20,786,203.28
  6. Step 6: Final answer
    x = 16,598,309.35

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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.