Home / 78,396,313.74-108,186,346.35-43,588,734.54

Finding the Fourth Proportional to 78,396,313.74, 108,186,346.35 and 43,588,734.54

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Solution

The fourth proportional to 78,396,313.74, 108,186,346.35 and 43,588,734.54 is: 60,152,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,396,313.74 : 108,186,346.35 = 43,588,734.54 : x
  2. Step 2: Convert to fraction form
    78,396,313.74/108,186,346.35 = 43,588,734.54/x
  3. Step 3: Cross multiply
    78,396,313.74x = 108,186,346.35 × 43,588,734.54
  4. Step 4: Simplify right side
    78,396,313.74x = 4,715,705,931,902,648
  5. Step 5: Solve for x
    x = 4,715,705,931,902,648/78,396,313.74
  6. Step 6: Final answer
    x = 60,152,138.63

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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.