Home / 20,242,238.40-30,363,357.60-13,439,793.60

Finding the Fourth Proportional to 20,242,238.40, 30,363,357.60 and 13,439,793.60

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Solution

The fourth proportional to 20,242,238.40, 30,363,357.60 and 13,439,793.60 is: 20,159,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242,238.40 : 30,363,357.60 = 13,439,793.60 : x
  2. Step 2: Convert to fraction form
    20,242,238.40/30,363,357.60 = 13,439,793.60/x
  3. Step 3: Cross multiply
    20,242,238.40x = 30,363,357.60 × 13,439,793.60
  4. Step 4: Simplify right side
    20,242,238.40x = 408,077,259,146,991.38
  5. Step 5: Solve for x
    x = 408,077,259,146,991.38/20,242,238.40
  6. Step 6: Final answer
    x = 20,159,690.40

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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.