Home / 20,131,321.05-27,781,539.44-10,963,956.51

Finding the Fourth Proportional to 20,131,321.05, 27,781,539.44 and 10,963,956.51

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Solution

The fourth proportional to 20,131,321.05, 27,781,539.44 and 10,963,956.51 is: 15,130,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,321.05 : 27,781,539.44 = 10,963,956.51 : x
  2. Step 2: Convert to fraction form
    20,131,321.05/27,781,539.44 = 10,963,956.51/x
  3. Step 3: Cross multiply
    20,131,321.05x = 27,781,539.44 × 10,963,956.51
  4. Step 4: Simplify right side
    20,131,321.05x = 304,595,590,146,189.94
  5. Step 5: Solve for x
    x = 304,595,590,146,189.94/20,131,321.05
  6. Step 6: Final answer
    x = 15,130,432.29

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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.