Home / 440,320,733.84-660,481,217.40-129,428,362.64

Finding the Fourth Proportional to 440,320,733.84, 660,481,217.40 and 129,428,362.64

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Solution

The fourth proportional to 440,320,733.84, 660,481,217.40 and 129,428,362.64 is: 194,142,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,320,733.84 : 660,481,217.40 = 129,428,362.64 : x
  2. Step 2: Convert to fraction form
    440,320,733.84/660,481,217.40 = 129,428,362.64/x
  3. Step 3: Cross multiply
    440,320,733.84x = 660,481,217.40 × 129,428,362.64
  4. Step 4: Simplify right side
    440,320,733.84x = 85,485,002,522,555,872
  5. Step 5: Solve for x
    x = 85,485,002,522,555,872/440,320,733.84
  6. Step 6: Final answer
    x = 194,142,578.25

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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.