Home / 516,616,578.42-712,910,343.27-304,991,577.18

Finding the Fourth Proportional to 516,616,578.42, 712,910,343.27 and 304,991,577.18

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Solution

The fourth proportional to 516,616,578.42, 712,910,343.27 and 304,991,577.18 is: 420,876,253.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,616,578.42 : 712,910,343.27 = 304,991,577.18 : x
  2. Step 2: Convert to fraction form
    516,616,578.42/712,910,343.27 = 304,991,577.18/x
  3. Step 3: Cross multiply
    516,616,578.42x = 712,910,343.27 × 304,991,577.18
  4. Step 4: Simplify right side
    516,616,578.42x = 217,431,649,981,852,512
  5. Step 5: Solve for x
    x = 217,431,649,981,852,512/516,616,578.42
  6. Step 6: Final answer
    x = 420,876,253.42

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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.