Home / 385,365,099.11-531,804,361.94-209,153,096.75

Finding the Fourth Proportional to 385,365,099.11, 531,804,361.94 and 209,153,096.75

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Solution

The fourth proportional to 385,365,099.11, 531,804,361.94 and 209,153,096.75 is: 288,631,558.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,365,099.11 : 531,804,361.94 = 209,153,096.75 : x
  2. Step 2: Convert to fraction form
    385,365,099.11/531,804,361.94 = 209,153,096.75/x
  3. Step 3: Cross multiply
    385,365,099.11x = 531,804,361.94 × 209,153,096.75
  4. Step 4: Simplify right side
    385,365,099.11x = 111,228,529,161,204,048
  5. Step 5: Solve for x
    x = 111,228,529,161,204,048/385,365,099.11
  6. Step 6: Final answer
    x = 288,631,558.54

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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.