Home / 78,339,802.08-108,109,906.56-43,061,458.86

Finding the Fourth Proportional to 78,339,802.08, 108,109,906.56 and 43,061,458.86

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Solution

The fourth proportional to 78,339,802.08, 108,109,906.56 and 43,061,458.86 is: 59,425,351.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,339,802.08 : 108,109,906.56 = 43,061,458.86 : x
  2. Step 2: Convert to fraction form
    78,339,802.08/108,109,906.56 = 43,061,458.86/x
  3. Step 3: Cross multiply
    78,339,802.08x = 108,109,906.56 × 43,061,458.86
  4. Step 4: Simplify right side
    78,339,802.08x = 4,655,370,293,691,884
  5. Step 5: Solve for x
    x = 4,655,370,293,691,884/78,339,802.08
  6. Step 6: Final answer
    x = 59,425,351.74

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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.