Home / 399,290,855.83-551,011,229.69-223,080,174.60

Finding the Fourth Proportional to 399,290,855.83, 551,011,229.69 and 223,080,174.60

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Solution

The fourth proportional to 399,290,855.83, 551,011,229.69 and 223,080,174.60 is: 307,844,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,290,855.83 : 551,011,229.69 = 223,080,174.60 : x
  2. Step 2: Convert to fraction form
    399,290,855.83/551,011,229.69 = 223,080,174.60/x
  3. Step 3: Cross multiply
    399,290,855.83x = 551,011,229.69 × 223,080,174.60
  4. Step 4: Simplify right side
    399,290,855.83x = 122,919,681,324,690,480
  5. Step 5: Solve for x
    x = 122,919,681,324,690,480/399,290,855.83
  6. Step 6: Final answer
    x = 307,844,969.48

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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.