Home / 78,072,789.58-107,741,083.36-43,266,052.78

Finding the Fourth Proportional to 78,072,789.58, 107,741,083.36 and 43,266,052.78

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Solution

The fourth proportional to 78,072,789.58, 107,741,083.36 and 43,266,052.78 is: 59,707,504.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,072,789.58 : 107,741,083.36 = 43,266,052.78 : x
  2. Step 2: Convert to fraction form
    78,072,789.58/107,741,083.36 = 43,266,052.78/x
  3. Step 3: Cross multiply
    78,072,789.58x = 107,741,083.36 × 43,266,052.78
  4. Step 4: Simplify right side
    78,072,789.58x = 4,661,531,399,228,140
  5. Step 5: Solve for x
    x = 4,661,531,399,228,140/78,072,789.58
  6. Step 6: Final answer
    x = 59,707,504.04

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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.