Home / 987,728,338.20-1,481,591,728.98-297,635,600.28

Finding the Fourth Proportional to 987,728,338.20, 1,481,591,728.98 and 297,635,600.28

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Solution

The fourth proportional to 987,728,338.20, 1,481,591,728.98 and 297,635,600.28 is: 446,453,165.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,728,338.20 : 1,481,591,728.98 = 297,635,600.28 : x
  2. Step 2: Convert to fraction form
    987,728,338.20/1,481,591,728.98 = 297,635,600.28/x
  3. Step 3: Cross multiply
    987,728,338.20x = 1,481,591,728.98 × 297,635,600.28
  4. Step 4: Simplify right side
    987,728,338.20x = 440,974,443,624,845,312
  5. Step 5: Solve for x
    x = 440,974,443,624,845,312/987,728,338.20
  6. Step 6: Final answer
    x = 446,453,165.89

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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.