Home / 678,453,530.40-1,017,869,252.40-333,418,413.60

Finding the Fourth Proportional to 678,453,530.40, 1,017,869,252.40 and 333,418,413.60

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Solution

The fourth proportional to 678,453,530.40, 1,017,869,252.40 and 333,418,413.60 is: 500,220,481.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,453,530.40 : 1,017,869,252.40 = 333,418,413.60 : x
  2. Step 2: Convert to fraction form
    678,453,530.40/1,017,869,252.40 = 333,418,413.60/x
  3. Step 3: Cross multiply
    678,453,530.40x = 1,017,869,252.40 × 333,418,413.60
  4. Step 4: Simplify right side
    678,453,530.40x = 339,376,351,387,425,984
  5. Step 5: Solve for x
    x = 339,376,351,387,425,984/678,453,530.40
  6. Step 6: Final answer
    x = 500,220,481.11

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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.