Home / 22,189,905.21-30,622,110.68-12,400,349.41

Finding the Fourth Proportional to 22,189,905.21, 30,622,110.68 and 12,400,349.41

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Solution

The fourth proportional to 22,189,905.21, 30,622,110.68 and 12,400,349.41 is: 17,112,505.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,189,905.21 : 30,622,110.68 = 12,400,349.41 : x
  2. Step 2: Convert to fraction form
    22,189,905.21/30,622,110.68 = 12,400,349.41/x
  3. Step 3: Cross multiply
    22,189,905.21x = 30,622,110.68 × 12,400,349.41
  4. Step 4: Simplify right side
    22,189,905.21x = 379,724,871,965,135.69
  5. Step 5: Solve for x
    x = 379,724,871,965,135.69/22,189,905.21
  6. Step 6: Final answer
    x = 17,112,505.37

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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.