Home / 543,348,080.70-815,022,121.05-505,084,328.70

Finding the Fourth Proportional to 543,348,080.70, 815,022,121.05 and 505,084,328.70

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Solution

The fourth proportional to 543,348,080.70, 815,022,121.05 and 505,084,328.70 is: 757,626,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,348,080.70 : 815,022,121.05 = 505,084,328.70 : x
  2. Step 2: Convert to fraction form
    543,348,080.70/815,022,121.05 = 505,084,328.70/x
  3. Step 3: Cross multiply
    543,348,080.70x = 815,022,121.05 × 505,084,328.70
  4. Step 4: Simplify right side
    543,348,080.70x = 411,654,900,886,189,376
  5. Step 5: Solve for x
    x = 411,654,900,886,189,376/543,348,080.70
  6. Step 6: Final answer
    x = 757,626,493.05

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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.