Home / 543,348,019.20-815,022,028.80-505,084,267.20

Finding the Fourth Proportional to 543,348,019.20, 815,022,028.80 and 505,084,267.20

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Solution

The fourth proportional to 543,348,019.20, 815,022,028.80 and 505,084,267.20 is: 757,626,400.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,348,019.20 : 815,022,028.80 = 505,084,267.20 : x
  2. Step 2: Convert to fraction form
    543,348,019.20/815,022,028.80 = 505,084,267.20/x
  3. Step 3: Cross multiply
    543,348,019.20x = 815,022,028.80 × 505,084,267.20
  4. Step 4: Simplify right side
    543,348,019.20x = 411,654,804,168,305,280
  5. Step 5: Solve for x
    x = 411,654,804,168,305,280/543,348,019.20
  6. Step 6: Final answer
    x = 757,626,400.80

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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.