Home / 85,831,539.45-128,747,309.18-49,551,833.85

Finding the Fourth Proportional to 85,831,539.45, 128,747,309.18 and 49,551,833.85

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Solution

The fourth proportional to 85,831,539.45, 128,747,309.18 and 49,551,833.85 is: 74,327,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,831,539.45 : 128,747,309.18 = 49,551,833.85 : x
  2. Step 2: Convert to fraction form
    85,831,539.45/128,747,309.18 = 49,551,833.85/x
  3. Step 3: Cross multiply
    85,831,539.45x = 128,747,309.18 × 49,551,833.85
  4. Step 4: Simplify right side
    85,831,539.45x = 6,379,665,272,874,181
  5. Step 5: Solve for x
    x = 6,379,665,272,874,181/85,831,539.45
  6. Step 6: Final answer
    x = 74,327,750.78

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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.