Home / 38,118,139.20-57,188,431.62-13,856,683.86

Finding the Fourth Proportional to 38,118,139.20, 57,188,431.62 and 13,856,683.86

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Solution

The fourth proportional to 38,118,139.20, 57,188,431.62 and 13,856,683.86 is: 20,789,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,118,139.20 : 57,188,431.62 = 13,856,683.86 : x
  2. Step 2: Convert to fraction form
    38,118,139.20/57,188,431.62 = 13,856,683.86/x
  3. Step 3: Cross multiply
    38,118,139.20x = 57,188,431.62 × 13,856,683.86
  4. Step 4: Simplify right side
    38,118,139.20x = 792,442,017,407,567.62
  5. Step 5: Solve for x
    x = 792,442,017,407,567.62/38,118,139.20
  6. Step 6: Final answer
    x = 20,789,105.50

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1.5x scale

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.