Home / 403,008,003.20-604,512,004.80-379,120,131.20

Finding the Fourth Proportional to 403,008,003.20, 604,512,004.80 and 379,120,131.20

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Solution

The fourth proportional to 403,008,003.20, 604,512,004.80 and 379,120,131.20 is: 568,680,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,008,003.20 : 604,512,004.80 = 379,120,131.20 : x
  2. Step 2: Convert to fraction form
    403,008,003.20/604,512,004.80 = 379,120,131.20/x
  3. Step 3: Cross multiply
    403,008,003.20x = 604,512,004.80 × 379,120,131.20
  4. Step 4: Simplify right side
    403,008,003.20x = 229,182,670,571,751,008
  5. Step 5: Solve for x
    x = 229,182,670,571,751,008/403,008,003.20
  6. Step 6: Final answer
    x = 568,680,196.80

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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.