Home / 209,278,996.03-288,802,722.69-115,191,131.36

Finding the Fourth Proportional to 209,278,996.03, 288,802,722.69 and 115,191,131.36

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Solution

The fourth proportional to 209,278,996.03, 288,802,722.69 and 115,191,131.36 is: 158,962,499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,278,996.03 : 288,802,722.69 = 115,191,131.36 : x
  2. Step 2: Convert to fraction form
    209,278,996.03/288,802,722.69 = 115,191,131.36/x
  3. Step 3: Cross multiply
    209,278,996.03x = 288,802,722.69 × 115,191,131.36
  4. Step 4: Simplify right side
    209,278,996.03x = 33,267,512,366,509,444
  5. Step 5: Solve for x
    x = 33,267,512,366,509,444/209,278,996.03
  6. Step 6: Final answer
    x = 158,962,499.81

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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.