Home / 209,673,317.82-289,350,055.32-115,585,399.38

Finding the Fourth Proportional to 209,673,317.82, 289,350,055.32 and 115,585,399.38

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Solution

The fourth proportional to 209,673,317.82, 289,350,055.32 and 115,585,399.38 is: 159,508,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,673,317.82 : 289,350,055.32 = 115,585,399.38 : x
  2. Step 2: Convert to fraction form
    209,673,317.82/289,350,055.32 = 115,585,399.38/x
  3. Step 3: Cross multiply
    209,673,317.82x = 289,350,055.32 × 115,585,399.38
  4. Step 4: Simplify right side
    209,673,317.82x = 33,444,641,704,787,292
  5. Step 5: Solve for x
    x = 33,444,641,704,787,292/209,673,317.82
  6. Step 6: Final answer
    x = 159,508,334.45

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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.