Home / 759,043,839.20-1,138,657,891.44-213,785,372.96

Finding the Fourth Proportional to 759,043,839.20, 1,138,657,891.44 and 213,785,372.96

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Solution

The fourth proportional to 759,043,839.20, 1,138,657,891.44 and 213,785,372.96 is: 320,704,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,043,839.20 : 1,138,657,891.44 = 213,785,372.96 : x
  2. Step 2: Convert to fraction form
    759,043,839.20/1,138,657,891.44 = 213,785,372.96/x
  3. Step 3: Cross multiply
    759,043,839.20x = 1,138,657,891.44 × 213,785,372.96
  4. Step 4: Simplify right side
    759,043,839.20x = 243,428,401,995,347,616
  5. Step 5: Solve for x
    x = 243,428,401,995,347,616/759,043,839.20
  6. Step 6: Final answer
    x = 320,704,008.68

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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.