Home / 20,991,447.40-31,501,167.90-11,893,527.40

Finding the Fourth Proportional to 20,991,447.40, 31,501,167.90 and 11,893,527.40

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Solution

The fourth proportional to 20,991,447.40, 31,501,167.90 and 11,893,527.40 is: 17,848,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,991,447.40 : 31,501,167.90 = 11,893,527.40 : x
  2. Step 2: Convert to fraction form
    20,991,447.40/31,501,167.90 = 11,893,527.40/x
  3. Step 3: Cross multiply
    20,991,447.40x = 31,501,167.90 × 11,893,527.40
  4. Step 4: Simplify right side
    20,991,447.40x = 374,660,003,550,650.44
  5. Step 5: Solve for x
    x = 374,660,003,550,650.44/20,991,447.40
  6. Step 6: Final answer
    x = 17,848,221.54

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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.