Home / 78,410,910.76-108,191,200.26-45,809,564.20

Finding the Fourth Proportional to 78,410,910.76, 108,191,200.26 and 45,809,564.20

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Solution

The fourth proportional to 78,410,910.76, 108,191,200.26 and 45,809,564.20 is: 63,207,934.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,410,910.76 : 108,191,200.26 = 45,809,564.20 : x
  2. Step 2: Convert to fraction form
    78,410,910.76/108,191,200.26 = 45,809,564.20/x
  3. Step 3: Cross multiply
    78,410,910.76x = 108,191,200.26 × 45,809,564.20
  4. Step 4: Simplify right side
    78,410,910.76x = 4,956,191,734,185,527
  5. Step 5: Solve for x
    x = 4,956,191,734,185,527/78,410,910.76
  6. Step 6: Final answer
    x = 63,207,934.79

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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.