Home / 18,721,914.90-28,082,872.35-16,407,777.30

Finding the Fourth Proportional to 18,721,914.90, 28,082,872.35 and 16,407,777.30

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Solution

The fourth proportional to 18,721,914.90, 28,082,872.35 and 16,407,777.30 is: 24,611,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,914.90 : 28,082,872.35 = 16,407,777.30 : x
  2. Step 2: Convert to fraction form
    18,721,914.90/28,082,872.35 = 16,407,777.30/x
  3. Step 3: Cross multiply
    18,721,914.90x = 28,082,872.35 × 16,407,777.30
  4. Step 4: Simplify right side
    18,721,914.90x = 460,777,515,463,127.69
  5. Step 5: Solve for x
    x = 460,777,515,463,127.69/18,721,914.90
  6. Step 6: Final answer
    x = 24,611,665.95

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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.