Home / 20,701,381.68-28,568,100.24-11,409,283.44

Finding the Fourth Proportional to 20,701,381.68, 28,568,100.24 and 11,409,283.44

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Solution

The fourth proportional to 20,701,381.68, 28,568,100.24 and 11,409,283.44 is: 15,744,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701,381.68 : 28,568,100.24 = 11,409,283.44 : x
  2. Step 2: Convert to fraction form
    20,701,381.68/28,568,100.24 = 11,409,283.44/x
  3. Step 3: Cross multiply
    20,701,381.68x = 28,568,100.24 × 11,409,283.44
  4. Step 4: Simplify right side
    20,701,381.68x = 325,941,552,980,492
  5. Step 5: Solve for x
    x = 325,941,552,980,492/20,701,381.68
  6. Step 6: Final answer
    x = 15,744,917.80

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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.