Home / 30,066,509.66-45,085,067.79-20,972,963.66

Finding the Fourth Proportional to 30,066,509.66, 45,085,067.79 and 20,972,963.66

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Solution

The fourth proportional to 30,066,509.66, 45,085,067.79 and 20,972,963.66 is: 31,449,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,066,509.66 : 45,085,067.79 = 20,972,963.66 : x
  2. Step 2: Convert to fraction form
    30,066,509.66/45,085,067.79 = 20,972,963.66/x
  3. Step 3: Cross multiply
    30,066,509.66x = 45,085,067.79 × 20,972,963.66
  4. Step 4: Simplify right side
    30,066,509.66x = 945,567,488,368,306.50
  5. Step 5: Solve for x
    x = 945,567,488,368,306.50/30,066,509.66
  6. Step 6: Final answer
    x = 31,449,193.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.