Home / 20,181,429.45-27,851,022.18-11,479,378.32

Finding the Fourth Proportional to 20,181,429.45, 27,851,022.18 and 11,479,378.32

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Solution

The fourth proportional to 20,181,429.45, 27,851,022.18 and 11,479,378.32 is: 15,841,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181,429.45 : 27,851,022.18 = 11,479,378.32 : x
  2. Step 2: Convert to fraction form
    20,181,429.45/27,851,022.18 = 11,479,378.32/x
  3. Step 3: Cross multiply
    20,181,429.45x = 27,851,022.18 × 11,479,378.32
  4. Step 4: Simplify right side
    20,181,429.45x = 319,712,420,202,931.12
  5. Step 5: Solve for x
    x = 319,712,420,202,931.12/20,181,429.45
  6. Step 6: Final answer
    x = 15,841,911.55

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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.