Home / 345,220,494.21-517,835,228.77-115,189,578.87

Finding the Fourth Proportional to 345,220,494.21, 517,835,228.77 and 115,189,578.87

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Solution

The fourth proportional to 345,220,494.21, 517,835,228.77 and 115,189,578.87 is: 172,785,865.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,220,494.21 : 517,835,228.77 = 115,189,578.87 : x
  2. Step 2: Convert to fraction form
    345,220,494.21/517,835,228.77 = 115,189,578.87/x
  3. Step 3: Cross multiply
    345,220,494.21x = 517,835,228.77 × 115,189,578.87
  4. Step 4: Simplify right side
    345,220,494.21x = 59,649,221,923,619,992
  5. Step 5: Solve for x
    x = 59,649,221,923,619,992/345,220,494.21
  6. Step 6: Final answer
    x = 172,785,865.63

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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.