Home / 78,724,047.72-108,660,794.09-45,694,937.84

Finding the Fourth Proportional to 78,724,047.72, 108,660,794.09 and 45,694,937.84

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Solution

The fourth proportional to 78,724,047.72, 108,660,794.09 and 45,694,937.84 is: 63,071,556.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724,047.72 : 108,660,794.09 = 45,694,937.84 : x
  2. Step 2: Convert to fraction form
    78,724,047.72/108,660,794.09 = 45,694,937.84/x
  3. Step 3: Cross multiply
    78,724,047.72x = 108,660,794.09 × 45,694,937.84
  4. Step 4: Simplify right side
    78,724,047.72x = 4,965,248,230,815,811
  5. Step 5: Solve for x
    x = 4,965,248,230,815,811/78,724,047.72
  6. Step 6: Final answer
    x = 63,071,556.59

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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.