Home / 21,572,900.79-29,770,426.17-11,783,351.22

Finding the Fourth Proportional to 21,572,900.79, 29,770,426.17 and 11,783,351.22

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Solution

The fourth proportional to 21,572,900.79, 29,770,426.17 and 11,783,351.22 is: 16,260,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572,900.79 : 29,770,426.17 = 11,783,351.22 : x
  2. Step 2: Convert to fraction form
    21,572,900.79/29,770,426.17 = 11,783,351.22/x
  3. Step 3: Cross multiply
    21,572,900.79x = 29,770,426.17 × 11,783,351.22
  4. Step 4: Simplify right side
    21,572,900.79x = 350,795,387,530,189.44
  5. Step 5: Solve for x
    x = 350,795,387,530,189.44/21,572,900.79
  6. Step 6: Final answer
    x = 16,260,928.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.