Home / 21,753,481.12-30,020,005-11,830,458.18

Finding the Fourth Proportional to 21,753,481.12, 30,020,005 and 11,830,458.18

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Solution

The fourth proportional to 21,753,481.12, 30,020,005 and 11,830,458.18 is: 16,326,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753,481.12 : 30,020,005 = 11,830,458.18 : x
  2. Step 2: Convert to fraction form
    21,753,481.12/30,020,005 = 11,830,458.18/x
  3. Step 3: Cross multiply
    21,753,481.12x = 30,020,005 × 11,830,458.18
  4. Step 4: Simplify right side
    21,753,481.12x = 355,150,413,715,890.88
  5. Step 5: Solve for x
    x = 355,150,413,715,890.88/21,753,481.12
  6. Step 6: Final answer
    x = 16,326,141.63

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1.5x scale

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.