Home / 77,171,804.80-106,349,912.64-75,753,355.55

Finding the Fourth Proportional to 77,171,804.80, 106,349,912.64 and 75,753,355.55

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Solution

The fourth proportional to 77,171,804.80, 106,349,912.64 and 75,753,355.55 is: 104,395,157.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,171,804.80 : 106,349,912.64 = 75,753,355.55 : x
  2. Step 2: Convert to fraction form
    77,171,804.80/106,349,912.64 = 75,753,355.55/x
  3. Step 3: Cross multiply
    77,171,804.80x = 106,349,912.64 × 75,753,355.55
  4. Step 4: Simplify right side
    77,171,804.80x = 8,056,362,744,397,610
  5. Step 5: Solve for x
    x = 8,056,362,744,397,610/77,171,804.80
  6. Step 6: Final answer
    x = 104,395,157.86

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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.