Home / 20,139,192.80-27,792,003.12-10,971,807.20

Finding the Fourth Proportional to 20,139,192.80, 27,792,003.12 and 10,971,807.20

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Solution

The fourth proportional to 20,139,192.80, 27,792,003.12 and 10,971,807.20 is: 15,141,048.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,192.80 : 27,792,003.12 = 10,971,807.20 : x
  2. Step 2: Convert to fraction form
    20,139,192.80/27,792,003.12 = 10,971,807.20/x
  3. Step 3: Cross multiply
    20,139,192.80x = 27,792,003.12 × 10,971,807.20
  4. Step 4: Simplify right side
    20,139,192.80x = 304,928,499,934,438.44
  5. Step 5: Solve for x
    x = 304,928,499,934,438.44/20,139,192.80
  6. Step 6: Final answer
    x = 15,141,048.75

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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.