Home / 16,821,101.32-23,213,128.80-9,086,143.48

Finding the Fourth Proportional to 16,821,101.32, 23,213,128.80 and 9,086,143.48

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Solution

The fourth proportional to 16,821,101.32, 23,213,128.80 and 9,086,143.48 is: 12,538,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821,101.32 : 23,213,128.80 = 9,086,143.48 : x
  2. Step 2: Convert to fraction form
    16,821,101.32/23,213,128.80 = 9,086,143.48/x
  3. Step 3: Cross multiply
    16,821,101.32x = 23,213,128.80 × 9,086,143.48
  4. Step 4: Simplify right side
    16,821,101.32x = 210,917,818,896,520.25
  5. Step 5: Solve for x
    x = 210,917,818,896,520.25/16,821,101.32
  6. Step 6: Final answer
    x = 12,538,882.85

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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.