Home / 399,290,837.29-551,011,204.11-223,080,156.06

Finding the Fourth Proportional to 399,290,837.29, 551,011,204.11 and 223,080,156.06

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Solution

The fourth proportional to 399,290,837.29, 551,011,204.11 and 223,080,156.06 is: 307,844,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,290,837.29 : 551,011,204.11 = 223,080,156.06 : x
  2. Step 2: Convert to fraction form
    399,290,837.29/551,011,204.11 = 223,080,156.06/x
  3. Step 3: Cross multiply
    399,290,837.29x = 551,011,204.11 × 223,080,156.06
  4. Step 4: Simplify right side
    399,290,837.29x = 122,919,665,405,046,320
  5. Step 5: Solve for x
    x = 122,919,665,405,046,320/399,290,837.29
  6. Step 6: Final answer
    x = 307,844,943.90

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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.