Home / 21,620,305.20-29,836,020.72-11,830,749.02

Finding the Fourth Proportional to 21,620,305.20, 29,836,020.72 and 11,830,749.02

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Solution

The fourth proportional to 21,620,305.20, 29,836,020.72 and 11,830,749.02 is: 16,326,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620,305.20 : 29,836,020.72 = 11,830,749.02 : x
  2. Step 2: Convert to fraction form
    21,620,305.20/29,836,020.72 = 11,830,749.02/x
  3. Step 3: Cross multiply
    21,620,305.20x = 29,836,020.72 × 11,830,749.02
  4. Step 4: Simplify right side
    21,620,305.20x = 352,982,472,744,659.62
  5. Step 5: Solve for x
    x = 352,982,472,744,659.62/21,620,305.20
  6. Step 6: Final answer
    x = 16,326,433.39

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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.