Home / 18,145,387.80-27,222,893.10-7,905,853.80

Finding the Fourth Proportional to 18,145,387.80, 27,222,893.10 and 7,905,853.80

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Solution

The fourth proportional to 18,145,387.80, 27,222,893.10 and 7,905,853.80 is: 11,860,877.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,387.80 : 27,222,893.10 = 7,905,853.80 : x
  2. Step 2: Convert to fraction form
    18,145,387.80/27,222,893.10 = 7,905,853.80/x
  3. Step 3: Cross multiply
    18,145,387.80x = 27,222,893.10 × 7,905,853.80
  4. Step 4: Simplify right side
    18,145,387.80x = 215,220,212,861,628.78
  5. Step 5: Solve for x
    x = 215,220,212,861,628.78/18,145,387.80
  6. Step 6: Final answer
    x = 11,860,877.00

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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.