Home / 21,383,998.20-32,075,997.30-19,872,343.80

Finding the Fourth Proportional to 21,383,998.20, 32,075,997.30 and 19,872,343.80

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Solution

The fourth proportional to 21,383,998.20, 32,075,997.30 and 19,872,343.80 is: 29,808,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383,998.20 : 32,075,997.30 = 19,872,343.80 : x
  2. Step 2: Convert to fraction form
    21,383,998.20/32,075,997.30 = 19,872,343.80/x
  3. Step 3: Cross multiply
    21,383,998.20x = 32,075,997.30 × 19,872,343.80
  4. Step 4: Simplify right side
    21,383,998.20x = 637,425,246,073,471.75
  5. Step 5: Solve for x
    x = 637,425,246,073,471.75/21,383,998.20
  6. Step 6: Final answer
    x = 29,808,515.70

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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.