Home / 399,418,259.23-551,197,944.53-223,206,254.81

Finding the Fourth Proportional to 399,418,259.23, 551,197,944.53 and 223,206,254.81

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Solution

The fourth proportional to 399,418,259.23, 551,197,944.53 and 223,206,254.81 is: 308,025,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,418,259.23 : 551,197,944.53 = 223,206,254.81 : x
  2. Step 2: Convert to fraction form
    399,418,259.23/551,197,944.53 = 223,206,254.81/x
  3. Step 3: Cross multiply
    399,418,259.23x = 551,197,944.53 × 223,206,254.81
  4. Step 4: Simplify right side
    399,418,259.23x = 123,030,828,857,511,424
  5. Step 5: Solve for x
    x = 123,030,828,857,511,424/399,418,259.23
  6. Step 6: Final answer
    x = 308,025,048.97

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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.