Home / 20,776,005.10-31,164,007.65-11,210,067.10

Finding the Fourth Proportional to 20,776,005.10, 31,164,007.65 and 11,210,067.10

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Solution

The fourth proportional to 20,776,005.10, 31,164,007.65 and 11,210,067.10 is: 16,815,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,005.10 : 31,164,007.65 = 11,210,067.10 : x
  2. Step 2: Convert to fraction form
    20,776,005.10/31,164,007.65 = 11,210,067.10/x
  3. Step 3: Cross multiply
    20,776,005.10x = 31,164,007.65 × 11,210,067.10
  4. Step 4: Simplify right side
    20,776,005.10x = 349,350,616,861,413.31
  5. Step 5: Solve for x
    x = 349,350,616,861,413.31/20,776,005.10
  6. Step 6: Final answer
    x = 16,815,100.65

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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.