Home / 21,691,037.10-29,934,182.09-11,901,478.69

Finding the Fourth Proportional to 21,691,037.10, 29,934,182.09 and 11,901,478.69

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Solution

The fourth proportional to 21,691,037.10, 29,934,182.09 and 11,901,478.69 is: 16,424,342.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691,037.10 : 29,934,182.09 = 11,901,478.69 : x
  2. Step 2: Convert to fraction form
    21,691,037.10/29,934,182.09 = 11,901,478.69/x
  3. Step 3: Cross multiply
    21,691,037.10x = 29,934,182.09 × 11,901,478.69
  4. Step 4: Simplify right side
    21,691,037.10x = 356,261,030,097,043.75
  5. Step 5: Solve for x
    x = 356,261,030,097,043.75/21,691,037.10
  6. Step 6: Final answer
    x = 16,424,342.85

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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.