Home / 13,790,871.60-20,654,814.60-8,122,167.60

Finding the Fourth Proportional to 13,790,871.60, 20,654,814.60 and 8,122,167.60

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Solution

The fourth proportional to 13,790,871.60, 20,654,814.60 and 8,122,167.60 is: 12,164,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,871.60 : 20,654,814.60 = 8,122,167.60 : x
  2. Step 2: Convert to fraction form
    13,790,871.60/20,654,814.60 = 8,122,167.60/x
  3. Step 3: Cross multiply
    13,790,871.60x = 20,654,814.60 × 8,122,167.60
  4. Step 4: Simplify right side
    13,790,871.60x = 167,761,865,928,126.97
  5. Step 5: Solve for x
    x = 167,761,865,928,126.97/13,790,871.60
  6. Step 6: Final answer
    x = 12,164,703.64

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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.