Home / 12,191,758.84-18,291,703.56-8,109,174.85

Finding the Fourth Proportional to 12,191,758.84, 18,291,703.56 and 8,109,174.85

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Solution

The fourth proportional to 12,191,758.84, 18,291,703.56 and 8,109,174.85 is: 12,166,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191,758.84 : 18,291,703.56 = 8,109,174.85 : x
  2. Step 2: Convert to fraction form
    12,191,758.84/18,291,703.56 = 8,109,174.85/x
  3. Step 3: Cross multiply
    12,191,758.84x = 18,291,703.56 × 8,109,174.85
  4. Step 4: Simplify right side
    12,191,758.84x = 148,330,622,426,678.19
  5. Step 5: Solve for x
    x = 148,330,622,426,678.19/12,191,758.84
  6. Step 6: Final answer
    x = 12,166,466.25

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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.