Home / 345,084,460.57-517,883,772.84-253,205,620.03

Finding the Fourth Proportional to 345,084,460.57, 517,883,772.84 and 253,205,620.03

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Solution

The fourth proportional to 345,084,460.57, 517,883,772.84 and 253,205,620.03 is: 379,997,063.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,084,460.57 : 517,883,772.84 = 253,205,620.03 : x
  2. Step 2: Convert to fraction form
    345,084,460.57/517,883,772.84 = 253,205,620.03/x
  3. Step 3: Cross multiply
    345,084,460.57x = 517,883,772.84 × 253,205,620.03
  4. Step 4: Simplify right side
    345,084,460.57x = 131,131,081,805,427,872
  5. Step 5: Solve for x
    x = 131,131,081,805,427,872/345,084,460.57
  6. Step 6: Final answer
    x = 379,997,063.87

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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.