Home / 82,351,362.40-123,571,280.40-34,487,144.80

Finding the Fourth Proportional to 82,351,362.40, 123,571,280.40 and 34,487,144.80

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Solution

The fourth proportional to 82,351,362.40, 123,571,280.40 and 34,487,144.80 is: 51,749,242.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,351,362.40 : 123,571,280.40 = 34,487,144.80 : x
  2. Step 2: Convert to fraction form
    82,351,362.40/123,571,280.40 = 34,487,144.80/x
  3. Step 3: Cross multiply
    82,351,362.40x = 123,571,280.40 × 34,487,144.80
  4. Step 4: Simplify right side
    82,351,362.40x = 4,261,620,640,276,202
  5. Step 5: Solve for x
    x = 4,261,620,640,276,202/82,351,362.40
  6. Step 6: Final answer
    x = 51,749,242.71

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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.