Home / 72,654,403.15-108,858,279.52-43,839,992.35

Finding the Fourth Proportional to 72,654,403.15, 108,858,279.52 and 43,839,992.35

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Solution

The fourth proportional to 72,654,403.15, 108,858,279.52 and 43,839,992.35 is: 65,685,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654,403.15 : 108,858,279.52 = 43,839,992.35 : x
  2. Step 2: Convert to fraction form
    72,654,403.15/108,858,279.52 = 43,839,992.35/x
  3. Step 3: Cross multiply
    72,654,403.15x = 108,858,279.52 × 43,839,992.35
  4. Step 4: Simplify right side
    72,654,403.15x = 4,772,346,141,390,962
  5. Step 5: Solve for x
    x = 4,772,346,141,390,962/72,654,403.15
  6. Step 6: Final answer
    x = 65,685,573.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.