Home / 209,279,016.34-288,802,750.58-115,191,151.62

Finding the Fourth Proportional to 209,279,016.34, 288,802,750.58 and 115,191,151.62

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Solution

The fourth proportional to 209,279,016.34, 288,802,750.58 and 115,191,151.62 is: 158,962,527.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279,016.34 : 288,802,750.58 = 115,191,151.62 : x
  2. Step 2: Convert to fraction form
    209,279,016.34/288,802,750.58 = 115,191,151.62/x
  3. Step 3: Cross multiply
    209,279,016.34x = 288,802,750.58 × 115,191,151.62
  4. Step 4: Simplify right side
    209,279,016.34x = 33,267,521,430,333,824
  5. Step 5: Solve for x
    x = 33,267,521,430,333,824/209,279,016.34
  6. Step 6: Final answer
    x = 158,962,527.69

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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.