Home / 521,108,360.11-781,687,679.06-171,346,683.88

Finding the Fourth Proportional to 521,108,360.11, 781,687,679.06 and 171,346,683.88

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Solution

The fourth proportional to 521,108,360.11, 781,687,679.06 and 171,346,683.88 is: 257,028,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108,360.11 : 781,687,679.06 = 171,346,683.88 : x
  2. Step 2: Convert to fraction form
    521,108,360.11/781,687,679.06 = 171,346,683.88/x
  3. Step 3: Cross multiply
    521,108,360.11x = 781,687,679.06 × 171,346,683.88
  4. Step 4: Simplify right side
    521,108,360.11x = 133,939,591,635,927,968
  5. Step 5: Solve for x
    x = 133,939,591,635,927,968/521,108,360.11
  6. Step 6: Final answer
    x = 257,028,291.79

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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.