Home / 38,286,540.70-57,429,811.05-12,724,228.60

Finding the Fourth Proportional to 38,286,540.70, 57,429,811.05 and 12,724,228.60

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Solution

The fourth proportional to 38,286,540.70, 57,429,811.05 and 12,724,228.60 is: 19,086,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286,540.70 : 57,429,811.05 = 12,724,228.60 : x
  2. Step 2: Convert to fraction form
    38,286,540.70/57,429,811.05 = 12,724,228.60/x
  3. Step 3: Cross multiply
    38,286,540.70x = 57,429,811.05 × 12,724,228.60
  4. Step 4: Simplify right side
    38,286,540.70x = 730,750,044,255,006
  5. Step 5: Solve for x
    x = 730,750,044,255,006/38,286,540.70
  6. Step 6: Final answer
    x = 19,086,342.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.