Home / 209,279,028.99-288,802,768.08-115,191,164.31

Finding the Fourth Proportional to 209,279,028.99, 288,802,768.08 and 115,191,164.31

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Solution

The fourth proportional to 209,279,028.99, 288,802,768.08 and 115,191,164.31 is: 158,962,545.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279,028.99 : 288,802,768.08 = 115,191,164.31 : x
  2. Step 2: Convert to fraction form
    209,279,028.99/288,802,768.08 = 115,191,164.31/x
  3. Step 3: Cross multiply
    209,279,028.99x = 288,802,768.08 × 115,191,164.31
  4. Step 4: Simplify right side
    209,279,028.99x = 33,267,527,111,086,100
  5. Step 5: Solve for x
    x = 33,267,527,111,086,100/209,279,028.99
  6. Step 6: Final answer
    x = 158,962,545.23

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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.