Home / 21,620,305.70-29,836,021.41-11,830,749.52

Finding the Fourth Proportional to 21,620,305.70, 29,836,021.41 and 11,830,749.52

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Solution

The fourth proportional to 21,620,305.70, 29,836,021.41 and 11,830,749.52 is: 16,326,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620,305.70 : 29,836,021.41 = 11,830,749.52 : x
  2. Step 2: Convert to fraction form
    21,620,305.70/29,836,021.41 = 11,830,749.52/x
  3. Step 3: Cross multiply
    21,620,305.70x = 29,836,021.41 × 11,830,749.52
  4. Step 4: Simplify right side
    21,620,305.70x = 352,982,495,825,887.12
  5. Step 5: Solve for x
    x = 352,982,495,825,887.12/21,620,305.70
  6. Step 6: Final answer
    x = 16,326,434.08

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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.