Home / 209,673,190.53-289,349,879.85-115,585,272.56

Finding the Fourth Proportional to 209,673,190.53, 289,349,879.85 and 115,585,272.56

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Solution

The fourth proportional to 209,673,190.53, 289,349,879.85 and 115,585,272.56 is: 159,508,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,673,190.53 : 289,349,879.85 = 115,585,272.56 : x
  2. Step 2: Convert to fraction form
    209,673,190.53/289,349,879.85 = 115,585,272.56/x
  3. Step 3: Cross multiply
    209,673,190.53x = 289,349,879.85 × 115,585,272.56
  4. Step 4: Simplify right side
    209,673,190.53x = 33,444,584,727,665,504
  5. Step 5: Solve for x
    x = 33,444,584,727,665,504/209,673,190.53
  6. Step 6: Final answer
    x = 159,508,159.55

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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.