Home / 616,981,920.36-851,434,958.02-352,669,588.84

Finding the Fourth Proportional to 616,981,920.36, 851,434,958.02 and 352,669,588.84

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Solution

The fourth proportional to 616,981,920.36, 851,434,958.02 and 352,669,588.84 is: 486,683,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,981,920.36 : 851,434,958.02 = 352,669,588.84 : x
  2. Step 2: Convert to fraction form
    616,981,920.36/851,434,958.02 = 352,669,588.84/x
  3. Step 3: Cross multiply
    616,981,920.36x = 851,434,958.02 × 352,669,588.84
  4. Step 4: Simplify right side
    616,981,920.36x = 300,275,216,568,916,032
  5. Step 5: Solve for x
    x = 300,275,216,568,916,032/616,981,920.36
  6. Step 6: Final answer
    x = 486,683,979.97

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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.