Home / 353,193,803.31-487,402,687.75-196,560,868.78

Finding the Fourth Proportional to 353,193,803.31, 487,402,687.75 and 196,560,868.78

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Solution

The fourth proportional to 353,193,803.31, 487,402,687.75 and 196,560,868.78 is: 271,251,349.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,193,803.31 : 487,402,687.75 = 196,560,868.78 : x
  2. Step 2: Convert to fraction form
    353,193,803.31/487,402,687.75 = 196,560,868.78/x
  3. Step 3: Cross multiply
    353,193,803.31x = 487,402,687.75 × 196,560,868.78
  4. Step 4: Simplify right side
    353,193,803.31x = 95,804,295,749,847,072
  5. Step 5: Solve for x
    x = 95,804,295,749,847,072/353,193,803.31
  6. Step 6: Final answer
    x = 271,251,349.41

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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.