Home / 691,917,916.80-1,037,876,875.20-231,703,132.80

Finding the Fourth Proportional to 691,917,916.80, 1,037,876,875.20 and 231,703,132.80

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Solution

The fourth proportional to 691,917,916.80, 1,037,876,875.20 and 231,703,132.80 is: 347,554,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,917,916.80 : 1,037,876,875.20 = 231,703,132.80 : x
  2. Step 2: Convert to fraction form
    691,917,916.80/1,037,876,875.20 = 231,703,132.80/x
  3. Step 3: Cross multiply
    691,917,916.80x = 1,037,876,875.20 × 231,703,132.80
  4. Step 4: Simplify right side
    691,917,916.80x = 240,479,323,444,514,656
  5. Step 5: Solve for x
    x = 240,479,323,444,514,656/691,917,916.80
  6. Step 6: Final answer
    x = 347,554,699.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.