Home / 521,108,286.28-781,687,569.07-171,346,610.81

Finding the Fourth Proportional to 521,108,286.28, 781,687,569.07 and 171,346,610.81

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Solution

The fourth proportional to 521,108,286.28, 781,687,569.07 and 171,346,610.81 is: 257,028,182.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108,286.28 : 781,687,569.07 = 171,346,610.81 : x
  2. Step 2: Convert to fraction form
    521,108,286.28/781,687,569.07 = 171,346,610.81/x
  3. Step 3: Cross multiply
    521,108,286.28x = 781,687,569.07 × 171,346,610.81
  4. Step 4: Simplify right side
    521,108,286.28x = 133,939,515,669,258,544
  5. Step 5: Solve for x
    x = 133,939,515,669,258,544/521,108,286.28
  6. Step 6: Final answer
    x = 257,028,182.42

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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.