Home / 21,843,074.24-30,149,438.64-12,678,669.44

Finding the Fourth Proportional to 21,843,074.24, 30,149,438.64 and 12,678,669.44

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Solution

The fourth proportional to 21,843,074.24, 30,149,438.64 and 12,678,669.44 is: 17,500,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843,074.24 : 30,149,438.64 = 12,678,669.44 : x
  2. Step 2: Convert to fraction form
    21,843,074.24/30,149,438.64 = 12,678,669.44/x
  3. Step 3: Cross multiply
    21,843,074.24x = 30,149,438.64 × 12,678,669.44
  4. Step 4: Simplify right side
    21,843,074.24x = 382,254,766,318,123.12
  5. Step 5: Solve for x
    x = 382,254,766,318,123.12/21,843,074.24
  6. Step 6: Final answer
    x = 17,500,044.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.