Home / 218,313,905.40-327,470,858.10-200,457,487.80

Finding the Fourth Proportional to 218,313,905.40, 327,470,858.10 and 200,457,487.80

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Solution

The fourth proportional to 218,313,905.40, 327,470,858.10 and 200,457,487.80 is: 300,686,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,313,905.40 : 327,470,858.10 = 200,457,487.80 : x
  2. Step 2: Convert to fraction form
    218,313,905.40/327,470,858.10 = 200,457,487.80/x
  3. Step 3: Cross multiply
    218,313,905.40x = 327,470,858.10 × 200,457,487.80
  4. Step 4: Simplify right side
    218,313,905.40x = 65,643,985,542,436,288
  5. Step 5: Solve for x
    x = 65,643,985,542,436,288/218,313,905.40
  6. Step 6: Final answer
    x = 300,686,231.70

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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.