Home / 353,193,802.31-487,402,686.37-196,560,867.78

Finding the Fourth Proportional to 353,193,802.31, 487,402,686.37 and 196,560,867.78

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Solution

The fourth proportional to 353,193,802.31, 487,402,686.37 and 196,560,867.78 is: 271,251,348.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,193,802.31 : 487,402,686.37 = 196,560,867.78 : x
  2. Step 2: Convert to fraction form
    353,193,802.31/487,402,686.37 = 196,560,867.78/x
  3. Step 3: Cross multiply
    353,193,802.31x = 487,402,686.37 × 196,560,867.78
  4. Step 4: Simplify right side
    353,193,802.31x = 95,804,294,990,327,472
  5. Step 5: Solve for x
    x = 95,804,294,990,327,472/353,193,802.31
  6. Step 6: Final answer
    x = 271,251,348.02

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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.