Home / 21,678,838.18-29,914,640.73-12,514,433.38

Finding the Fourth Proportional to 21,678,838.18, 29,914,640.73 and 12,514,433.38

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Solution

The fourth proportional to 21,678,838.18, 29,914,640.73 and 12,514,433.38 is: 17,268,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678,838.18 : 29,914,640.73 = 12,514,433.38 : x
  2. Step 2: Convert to fraction form
    21,678,838.18/29,914,640.73 = 12,514,433.38/x
  3. Step 3: Cross multiply
    21,678,838.18x = 29,914,640.73 × 12,514,433.38
  4. Step 4: Simplify right side
    21,678,838.18x = 374,364,778,502,219.62
  5. Step 5: Solve for x
    x = 374,364,778,502,219.62/21,678,838.18
  6. Step 6: Final answer
    x = 17,268,673.51

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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.