Home / 68,899,514.49-103,350,112.38-20,378,348.92

Finding the Fourth Proportional to 68,899,514.49, 103,350,112.38 and 20,378,348.92

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Solution

The fourth proportional to 68,899,514.49, 103,350,112.38 and 20,378,348.92 is: 30,567,772.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,899,514.49 : 103,350,112.38 = 20,378,348.92 : x
  2. Step 2: Convert to fraction form
    68,899,514.49/103,350,112.38 = 20,378,348.92/x
  3. Step 3: Cross multiply
    68,899,514.49x = 103,350,112.38 × 20,378,348.92
  4. Step 4: Simplify right side
    68,899,514.49x = 2,106,104,651,130,039.25
  5. Step 5: Solve for x
    x = 2,106,104,651,130,039.25/68,899,514.49
  6. Step 6: Final answer
    x = 30,567,772.02

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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.