Home / 12,191,757.34-18,291,701.30-8,109,173.34

Finding the Fourth Proportional to 12,191,757.34, 18,291,701.30 and 8,109,173.34

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Solution

The fourth proportional to 12,191,757.34, 18,291,701.30 and 8,109,173.34 is: 12,166,463.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191,757.34 : 18,291,701.30 = 8,109,173.34 : x
  2. Step 2: Convert to fraction form
    12,191,757.34/18,291,701.30 = 8,109,173.34/x
  3. Step 3: Cross multiply
    12,191,757.34x = 18,291,701.30 × 8,109,173.34
  4. Step 4: Simplify right side
    12,191,757.34x = 148,330,576,614,070.16
  5. Step 5: Solve for x
    x = 148,330,576,614,070.16/12,191,757.34
  6. Step 6: Final answer
    x = 12,166,463.99

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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.