Home / 78,218,131.08-107,935,992.54-43,410,845.10

Finding the Fourth Proportional to 78,218,131.08, 107,935,992.54 and 43,410,845.10

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Solution

The fourth proportional to 78,218,131.08, 107,935,992.54 and 43,410,845.10 is: 59,904,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,218,131.08 : 107,935,992.54 = 43,410,845.10 : x
  2. Step 2: Convert to fraction form
    78,218,131.08/107,935,992.54 = 43,410,845.10/x
  3. Step 3: Cross multiply
    78,218,131.08x = 107,935,992.54 × 43,410,845.10
  4. Step 4: Simplify right side
    78,218,131.08x = 4,685,592,652,868,696
  5. Step 5: Solve for x
    x = 4,685,592,652,868,696/78,218,131.08
  6. Step 6: Final answer
    x = 59,904,175.52

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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.