Home / 77,915,504.72-107,526,561.54-43,107,628.26

Finding the Fourth Proportional to 77,915,504.72, 107,526,561.54 and 43,107,628.26

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Solution

The fourth proportional to 77,915,504.72, 107,526,561.54 and 43,107,628.26 is: 59,490,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,915,504.72 : 107,526,561.54 = 43,107,628.26 : x
  2. Step 2: Convert to fraction form
    77,915,504.72/107,526,561.54 = 43,107,628.26/x
  3. Step 3: Cross multiply
    77,915,504.72x = 107,526,561.54 × 43,107,628.26
  4. Step 4: Simplify right side
    77,915,504.72x = 4,635,215,042,942,333
  5. Step 5: Solve for x
    x = 4,635,215,042,942,333/77,915,504.72
  6. Step 6: Final answer
    x = 59,490,278.09

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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.