Home / 516,616,611.96-712,910,389.42-304,991,610.68

Finding the Fourth Proportional to 516,616,611.96, 712,910,389.42 and 304,991,610.68

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Solution

The fourth proportional to 516,616,611.96, 712,910,389.42 and 304,991,610.68 is: 420,876,299.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,616,611.96 : 712,910,389.42 = 304,991,610.68 : x
  2. Step 2: Convert to fraction form
    516,616,611.96/712,910,389.42 = 304,991,610.68/x
  3. Step 3: Cross multiply
    516,616,611.96x = 712,910,389.42 × 304,991,610.68
  4. Step 4: Simplify right side
    516,616,611.96x = 217,431,687,939,711,808
  5. Step 5: Solve for x
    x = 217,431,687,939,711,808/516,616,611.96
  6. Step 6: Final answer
    x = 420,876,299.57

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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.