Home / 13,656,771.80-20,481,877.20-7,887,028.40

Finding the Fourth Proportional to 13,656,771.80, 20,481,877.20 and 7,887,028.40

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Solution

The fourth proportional to 13,656,771.80, 20,481,877.20 and 7,887,028.40 is: 11,828,648.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656,771.80 : 20,481,877.20 = 7,887,028.40 : x
  2. Step 2: Convert to fraction form
    13,656,771.80/20,481,877.20 = 7,887,028.40/x
  3. Step 3: Cross multiply
    13,656,771.80x = 20,481,877.20 × 7,887,028.40
  4. Step 4: Simplify right side
    13,656,771.80x = 161,541,147,161,712.47
  5. Step 5: Solve for x
    x = 161,541,147,161,712.47/13,656,771.80
  6. Step 6: Final answer
    x = 11,828,648.05

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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.