Home / 78,049,550.97-107,685,257.63-47,097,027.45

Finding the Fourth Proportional to 78,049,550.97, 107,685,257.63 and 47,097,027.45

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Solution

The fourth proportional to 78,049,550.97, 107,685,257.63 and 47,097,027.45 is: 64,979,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,049,550.97 : 107,685,257.63 = 47,097,027.45 : x
  2. Step 2: Convert to fraction form
    78,049,550.97/107,685,257.63 = 47,097,027.45/x
  3. Step 3: Cross multiply
    78,049,550.97x = 107,685,257.63 × 47,097,027.45
  4. Step 4: Simplify right side
    78,049,550.97x = 5,071,655,534,324,947
  5. Step 5: Solve for x
    x = 5,071,655,534,324,947/78,049,550.97
  6. Step 6: Final answer
    x = 64,979,945.06

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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.