Home / 77,028,507.78-115,351,100.01-53,891,116.98

Finding the Fourth Proportional to 77,028,507.78, 115,351,100.01 and 53,891,116.98

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Solution

The fourth proportional to 77,028,507.78, 115,351,100.01 and 53,891,116.98 is: 80,702,584.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,028,507.78 : 115,351,100.01 = 53,891,116.98 : x
  2. Step 2: Convert to fraction form
    77,028,507.78/115,351,100.01 = 53,891,116.98/x
  3. Step 3: Cross multiply
    77,028,507.78x = 115,351,100.01 × 53,891,116.98
  4. Step 4: Simplify right side
    77,028,507.78x = 6,216,399,624,410,589
  5. Step 5: Solve for x
    x = 6,216,399,624,410,589/77,028,507.78
  6. Step 6: Final answer
    x = 80,702,584.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.