Home / 12,315,768.08-18,476,664.72-8,679,592.64

Finding the Fourth Proportional to 12,315,768.08, 18,476,664.72 and 8,679,592.64

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Solution

The fourth proportional to 12,315,768.08, 18,476,664.72 and 8,679,592.64 is: 13,021,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315,768.08 : 18,476,664.72 = 8,679,592.64 : x
  2. Step 2: Convert to fraction form
    12,315,768.08/18,476,664.72 = 8,679,592.64/x
  3. Step 3: Cross multiply
    12,315,768.08x = 18,476,664.72 × 8,679,592.64
  4. Step 4: Simplify right side
    12,315,768.08x = 160,369,923,115,459.66
  5. Step 5: Solve for x
    x = 160,369,923,115,459.66/12,315,768.08
  6. Step 6: Final answer
    x = 13,021,512.10

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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.