Home / 399,952,153.07-551,934,781.43-223,743,091.06

Finding the Fourth Proportional to 399,952,153.07, 551,934,781.43 and 223,743,091.06

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Solution

The fourth proportional to 399,952,153.07, 551,934,781.43 and 223,743,091.06 is: 308,765,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,952,153.07 : 551,934,781.43 = 223,743,091.06 : x
  2. Step 2: Convert to fraction form
    399,952,153.07/551,934,781.43 = 223,743,091.06/x
  3. Step 3: Cross multiply
    399,952,153.07x = 551,934,781.43 × 223,743,091.06
  4. Step 4: Simplify right side
    399,952,153.07x = 123,491,594,060,673,680
  5. Step 5: Solve for x
    x = 123,491,594,060,673,680/399,952,153.07
  6. Step 6: Final answer
    x = 308,765,918.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.