Home / 20,248,376.28-27,942,741.21-11,429,683.79

Finding the Fourth Proportional to 20,248,376.28, 27,942,741.21 and 11,429,683.79

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Solution

The fourth proportional to 20,248,376.28, 27,942,741.21 and 11,429,683.79 is: 15,772,953.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248,376.28 : 27,942,741.21 = 11,429,683.79 : x
  2. Step 2: Convert to fraction form
    20,248,376.28/27,942,741.21 = 11,429,683.79/x
  3. Step 3: Cross multiply
    20,248,376.28x = 27,942,741.21 × 11,429,683.79
  4. Step 4: Simplify right side
    20,248,376.28x = 319,376,696,159,249.62
  5. Step 5: Solve for x
    x = 319,376,696,159,249.62/20,248,376.28
  6. Step 6: Final answer
    x = 15,772,953.43

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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.