Home / 543,348,004.20-815,022,006.30-505,084,252.20

Finding the Fourth Proportional to 543,348,004.20, 815,022,006.30 and 505,084,252.20

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Solution

The fourth proportional to 543,348,004.20, 815,022,006.30 and 505,084,252.20 is: 757,626,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,348,004.20 : 815,022,006.30 = 505,084,252.20 : x
  2. Step 2: Convert to fraction form
    543,348,004.20/815,022,006.30 = 505,084,252.20/x
  3. Step 3: Cross multiply
    543,348,004.20x = 815,022,006.30 × 505,084,252.20
  4. Step 4: Simplify right side
    543,348,004.20x = 411,654,780,578,579,136
  5. Step 5: Solve for x
    x = 411,654,780,578,579,136/543,348,004.20
  6. Step 6: Final answer
    x = 757,626,378.30

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Similar ratio
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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.