Home / 13,407,846.60-20,111,769.90-12,358,086.60

Finding the Fourth Proportional to 13,407,846.60, 20,111,769.90 and 12,358,086.60

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Solution

The fourth proportional to 13,407,846.60, 20,111,769.90 and 12,358,086.60 is: 18,537,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407,846.60 : 20,111,769.90 = 12,358,086.60 : x
  2. Step 2: Convert to fraction form
    13,407,846.60/20,111,769.90 = 12,358,086.60/x
  3. Step 3: Cross multiply
    13,407,846.60x = 20,111,769.90 × 12,358,086.60
  4. Step 4: Simplify right side
    13,407,846.60x = 248,542,994,103,473.31
  5. Step 5: Solve for x
    x = 248,542,994,103,473.31/13,407,846.60
  6. Step 6: Final answer
    x = 18,537,129.90

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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.