Home / 20,139,191.80-27,792,001.74-10,971,806.20

Finding the Fourth Proportional to 20,139,191.80, 27,792,001.74 and 10,971,806.20

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Solution

The fourth proportional to 20,139,191.80, 27,792,001.74 and 10,971,806.20 is: 15,141,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,191.80 : 27,792,001.74 = 10,971,806.20 : x
  2. Step 2: Convert to fraction form
    20,139,191.80/27,792,001.74 = 10,971,806.20/x
  3. Step 3: Cross multiply
    20,139,191.80x = 27,792,001.74 × 10,971,806.20
  4. Step 4: Simplify right side
    20,139,191.80x = 304,928,457,001,342.75
  5. Step 5: Solve for x
    x = 304,928,457,001,342.75/20,139,191.80
  6. Step 6: Final answer
    x = 15,141,047.37

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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.