Home / 20,139,195.80-27,792,007.26-10,971,810.20

Finding the Fourth Proportional to 20,139,195.80, 27,792,007.26 and 10,971,810.20

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Solution

The fourth proportional to 20,139,195.80, 27,792,007.26 and 10,971,810.20 is: 15,141,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,195.80 : 27,792,007.26 = 10,971,810.20 : x
  2. Step 2: Convert to fraction form
    20,139,195.80/27,792,007.26 = 10,971,810.20/x
  3. Step 3: Cross multiply
    20,139,195.80x = 27,792,007.26 × 10,971,810.20
  4. Step 4: Simplify right side
    20,139,195.80x = 304,928,628,733,742.06
  5. Step 5: Solve for x
    x = 304,928,628,733,742.06/20,139,195.80
  6. Step 6: Final answer
    x = 15,141,052.89

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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.