Home / 78,378,388.56-108,162,964.85-43,098,054.48

Finding the Fourth Proportional to 78,378,388.56, 108,162,964.85 and 43,098,054.48

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Solution

The fourth proportional to 78,378,388.56, 108,162,964.85 and 43,098,054.48 is: 59,475,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,378,388.56 : 108,162,964.85 = 43,098,054.48 : x
  2. Step 2: Convert to fraction form
    78,378,388.56/108,162,964.85 = 43,098,054.48/x
  3. Step 3: Cross multiply
    78,378,388.56x = 108,162,964.85 × 43,098,054.48
  4. Step 4: Simplify right side
    78,378,388.56x = 4,661,613,351,608,134
  5. Step 5: Solve for x
    x = 4,661,613,351,608,134/78,378,388.56
  6. Step 6: Final answer
    x = 59,475,748.83

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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.