Home / 378,839,296.36-568,274,749.26-120,048,789.16

Finding the Fourth Proportional to 378,839,296.36, 568,274,749.26 and 120,048,789.16

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Solution

The fourth proportional to 378,839,296.36, 568,274,749.26 and 120,048,789.16 is: 180,078,192.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,839,296.36 : 568,274,749.26 = 120,048,789.16 : x
  2. Step 2: Convert to fraction form
    378,839,296.36/568,274,749.26 = 120,048,789.16/x
  3. Step 3: Cross multiply
    378,839,296.36x = 568,274,749.26 × 120,048,789.16
  4. Step 4: Simplify right side
    378,839,296.36x = 68,220,695,558,865,600
  5. Step 5: Solve for x
    x = 68,220,695,558,865,600/378,839,296.36
  6. Step 6: Final answer
    x = 180,078,192.03

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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.