Home / 78,521,863.12-108,358,054.05-43,714,556.62

Finding the Fourth Proportional to 78,521,863.12, 108,358,054.05 and 43,714,556.62

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Solution

The fourth proportional to 78,521,863.12, 108,358,054.05 and 43,714,556.62 is: 60,324,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,521,863.12 : 108,358,054.05 = 43,714,556.62 : x
  2. Step 2: Convert to fraction form
    78,521,863.12/108,358,054.05 = 43,714,556.62/x
  3. Step 3: Cross multiply
    78,521,863.12x = 108,358,054.05 × 43,714,556.62
  4. Step 4: Simplify right side
    78,521,863.12x = 4,736,824,289,001,745
  5. Step 5: Solve for x
    x = 4,736,824,289,001,745/78,521,863.12
  6. Step 6: Final answer
    x = 60,324,909.53

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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.