Home / 523,297,138.14-722,117,512.44-288,334,649.88

Finding the Fourth Proportional to 523,297,138.14, 722,117,512.44 and 288,334,649.88

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Solution

The fourth proportional to 523,297,138.14, 722,117,512.44 and 288,334,649.88 is: 397,883,888.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,297,138.14 : 722,117,512.44 = 288,334,649.88 : x
  2. Step 2: Convert to fraction form
    523,297,138.14/722,117,512.44 = 288,334,649.88/x
  3. Step 3: Cross multiply
    523,297,138.14x = 722,117,512.44 × 288,334,649.88
  4. Step 4: Simplify right side
    523,297,138.14x = 208,211,500,121,603,968
  5. Step 5: Solve for x
    x = 208,211,500,121,603,968/523,297,138.14
  6. Step 6: Final answer
    x = 397,883,888.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.