Home / 1,338,220,121.48-2,007,107,539.11-405,321,168.59

Finding the Fourth Proportional to 1,338,220,121.48, 2,007,107,539.11 and 405,321,168.59

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Solution

The fourth proportional to 1,338,220,121.48, 2,007,107,539.11 and 405,321,168.59 is: 607,914,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,220,121.48 : 2,007,107,539.11 = 405,321,168.59 : x
  2. Step 2: Convert to fraction form
    1,338,220,121.48/2,007,107,539.11 = 405,321,168.59/x
  3. Step 3: Cross multiply
    1,338,220,121.48x = 2,007,107,539.11 × 405,321,168.59
  4. Step 4: Simplify right side
    1,338,220,121.48x = 813,523,173,246,128,640
  5. Step 5: Solve for x
    x = 813,523,173,246,128,640/1,338,220,121.48
  6. Step 6: Final answer
    x = 607,914,318.57

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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.