Home / 13,826,999.70-20,740,499.55-12,457,062.90

Finding the Fourth Proportional to 13,826,999.70, 20,740,499.55 and 12,457,062.90

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Solution

The fourth proportional to 13,826,999.70, 20,740,499.55 and 12,457,062.90 is: 18,685,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826,999.70 : 20,740,499.55 = 12,457,062.90 : x
  2. Step 2: Convert to fraction form
    13,826,999.70/20,740,499.55 = 12,457,062.90/x
  3. Step 3: Cross multiply
    13,826,999.70x = 20,740,499.55 × 12,457,062.90
  4. Step 4: Simplify right side
    13,826,999.70x = 258,365,707,471,771.72
  5. Step 5: Solve for x
    x = 258,365,707,471,771.72/13,826,999.70
  6. Step 6: Final answer
    x = 18,685,594.35

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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.