Home / 345,009,556.44-517,212,003.78-129,749,969.88

Finding the Fourth Proportional to 345,009,556.44, 517,212,003.78 and 129,749,969.88

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Solution

The fourth proportional to 345,009,556.44, 517,212,003.78 and 129,749,969.88 is: 194,511,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,009,556.44 : 517,212,003.78 = 129,749,969.88 : x
  2. Step 2: Convert to fraction form
    345,009,556.44/517,212,003.78 = 129,749,969.88/x
  3. Step 3: Cross multiply
    345,009,556.44x = 517,212,003.78 × 129,749,969.88
  4. Step 4: Simplify right side
    345,009,556.44x = 67,108,241,912,029,440
  5. Step 5: Solve for x
    x = 67,108,241,912,029,440/345,009,556.44
  6. Step 6: Final answer
    x = 194,511,255.30

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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.