Home / 209,317,605.52-288,853,197.56-115,230,987.76

Finding the Fourth Proportional to 209,317,605.52, 288,853,197.56 and 115,230,987.76

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Solution

The fourth proportional to 209,317,605.52, 288,853,197.56 and 115,230,987.76 is: 159,015,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,317,605.52 : 288,853,197.56 = 115,230,987.76 : x
  2. Step 2: Convert to fraction form
    209,317,605.52/288,853,197.56 = 115,230,987.76/x
  3. Step 3: Cross multiply
    209,317,605.52x = 288,853,197.56 × 115,230,987.76
  4. Step 4: Simplify right side
    209,317,605.52x = 33,284,839,272,473,224
  5. Step 5: Solve for x
    x = 33,284,839,272,473,224/209,317,605.52
  6. Step 6: Final answer
    x = 159,015,956.59

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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.