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Finding the Fourth Proportional to 1,324,978,250.40, 1,987,467,375.60 and 452,564,704.80

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Solution

The fourth proportional to 1,324,978,250.40, 1,987,467,375.60 and 452,564,704.80 is: 678,847,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,978,250.40 : 1,987,467,375.60 = 452,564,704.80 : x
  2. Step 2: Convert to fraction form
    1,324,978,250.40/1,987,467,375.60 = 452,564,704.80/x
  3. Step 3: Cross multiply
    1,324,978,250.40x = 1,987,467,375.60 × 452,564,704.80
  4. Step 4: Simplify right side
    1,324,978,250.40x = 899,457,586,138,044,672
  5. Step 5: Solve for x
    x = 899,457,586,138,044,672/1,324,978,250.40
  6. Step 6: Final answer
    x = 678,847,057.20

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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.