Home / 14,132,680.80-21,199,021.20-11,820,912.45

Finding the Fourth Proportional to 14,132,680.80, 21,199,021.20 and 11,820,912.45

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Solution

The fourth proportional to 14,132,680.80, 21,199,021.20 and 11,820,912.45 is: 17,731,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,132,680.80 : 21,199,021.20 = 11,820,912.45 : x
  2. Step 2: Convert to fraction form
    14,132,680.80/21,199,021.20 = 11,820,912.45/x
  3. Step 3: Cross multiply
    14,132,680.80x = 21,199,021.20 × 11,820,912.45
  4. Step 4: Simplify right side
    14,132,680.80x = 250,591,773,630,893.91
  5. Step 5: Solve for x
    x = 250,591,773,630,893.91/14,132,680.80
  6. Step 6: Final answer
    x = 17,731,368.68

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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.