Home / 1,338,220,329.84-2,007,107,851.56-405,321,377.15

Finding the Fourth Proportional to 1,338,220,329.84, 2,007,107,851.56 and 405,321,377.15

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Solution

The fourth proportional to 1,338,220,329.84, 2,007,107,851.56 and 405,321,377.15 is: 607,914,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,220,329.84 : 2,007,107,851.56 = 405,321,377.15 : x
  2. Step 2: Convert to fraction form
    1,338,220,329.84/2,007,107,851.56 = 405,321,377.15/x
  3. Step 3: Cross multiply
    1,338,220,329.84x = 2,007,107,851.56 × 405,321,377.15
  4. Step 4: Simplify right side
    1,338,220,329.84x = 813,523,718,472,841,344
  5. Step 5: Solve for x
    x = 813,523,718,472,841,344/1,338,220,329.84
  6. Step 6: Final answer
    x = 607,914,631.34

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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.