Home / 516,616,609.96-712,910,386.66-304,991,608.68

Finding the Fourth Proportional to 516,616,609.96, 712,910,386.66 and 304,991,608.68

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Solution

The fourth proportional to 516,616,609.96, 712,910,386.66 and 304,991,608.68 is: 420,876,296.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,616,609.96 : 712,910,386.66 = 304,991,608.68 : x
  2. Step 2: Convert to fraction form
    516,616,609.96/712,910,386.66 = 304,991,608.68/x
  3. Step 3: Cross multiply
    516,616,609.96x = 712,910,386.66 × 304,991,608.68
  4. Step 4: Simplify right side
    516,616,609.96x = 217,431,685,672,114,208
  5. Step 5: Solve for x
    x = 217,431,685,672,114,208/516,616,609.96
  6. Step 6: Final answer
    x = 420,876,296.81

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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.