Home / 20,455,933.91-28,229,787.27-11,164,099.95

Finding the Fourth Proportional to 20,455,933.91, 28,229,787.27 and 11,164,099.95

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Solution

The fourth proportional to 20,455,933.91, 28,229,787.27 and 11,164,099.95 is: 15,406,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455,933.91 : 28,229,787.27 = 11,164,099.95 : x
  2. Step 2: Convert to fraction form
    20,455,933.91/28,229,787.27 = 11,164,099.95/x
  3. Step 3: Cross multiply
    20,455,933.91x = 28,229,787.27 × 11,164,099.95
  4. Step 4: Simplify right side
    20,455,933.91x = 315,160,166,508,368.69
  5. Step 5: Solve for x
    x = 315,160,166,508,368.69/20,455,933.91
  6. Step 6: Final answer
    x = 15,406,784.55

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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.