Home / 21,583,857.80-32,375,786.70-19,941,566.60

Finding the Fourth Proportional to 21,583,857.80, 32,375,786.70 and 19,941,566.60

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Solution

The fourth proportional to 21,583,857.80, 32,375,786.70 and 19,941,566.60 is: 29,912,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,583,857.80 : 32,375,786.70 = 19,941,566.60 : x
  2. Step 2: Convert to fraction form
    21,583,857.80/32,375,786.70 = 19,941,566.60/x
  3. Step 3: Cross multiply
    21,583,857.80x = 32,375,786.70 × 19,941,566.60
  4. Step 4: Simplify right side
    21,583,857.80x = 645,623,906,705,444.25
  5. Step 5: Solve for x
    x = 645,623,906,705,444.25/21,583,857.80
  6. Step 6: Final answer
    x = 29,912,349.90

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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.