Home / 209,744,449.20-289,464,578.16-115,676,998.62

Finding the Fourth Proportional to 209,744,449.20, 289,464,578.16 and 115,676,998.62

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Solution

The fourth proportional to 209,744,449.20, 289,464,578.16 and 115,676,998.62 is: 159,643,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,744,449.20 : 289,464,578.16 = 115,676,998.62 : x
  2. Step 2: Convert to fraction form
    209,744,449.20/289,464,578.16 = 115,676,998.62/x
  3. Step 3: Cross multiply
    209,744,449.20x = 289,464,578.16 × 115,676,998.62
  4. Step 4: Simplify right side
    209,744,449.20x = 33,484,393,608,353,208
  5. Step 5: Solve for x
    x = 33,484,393,608,353,208/209,744,449.20
  6. Step 6: Final answer
    x = 159,643,765.24

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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.