Home / 199,281,645.20-298,922,467.80-91,786,221.20

Finding the Fourth Proportional to 199,281,645.20, 298,922,467.80 and 91,786,221.20

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Solution

The fourth proportional to 199,281,645.20, 298,922,467.80 and 91,786,221.20 is: 137,679,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,281,645.20 : 298,922,467.80 = 91,786,221.20 : x
  2. Step 2: Convert to fraction form
    199,281,645.20/298,922,467.80 = 91,786,221.20/x
  3. Step 3: Cross multiply
    199,281,645.20x = 298,922,467.80 × 91,786,221.20
  4. Step 4: Simplify right side
    199,281,645.20x = 27,436,963,751,140,680
  5. Step 5: Solve for x
    x = 27,436,963,751,140,680/199,281,645.20
  6. Step 6: Final answer
    x = 137,679,331.80

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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.