Home / 1,338,220,334.60-2,007,107,858.66-405,321,381.84

Finding the Fourth Proportional to 1,338,220,334.60, 2,007,107,858.66 and 405,321,381.84

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Solution

The fourth proportional to 1,338,220,334.60, 2,007,107,858.66 and 405,321,381.84 is: 607,914,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,220,334.60 : 2,007,107,858.66 = 405,321,381.84 : x
  2. Step 2: Convert to fraction form
    1,338,220,334.60/2,007,107,858.66 = 405,321,381.84/x
  3. Step 3: Cross multiply
    1,338,220,334.60x = 2,007,107,858.66 × 405,321,381.84
  4. Step 4: Simplify right side
    1,338,220,334.60x = 813,523,730,773,994,624
  5. Step 5: Solve for x
    x = 813,523,730,773,994,624/1,338,220,334.60
  6. Step 6: Final answer
    x = 607,914,638.37

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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.