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Finding the Fourth Proportional to 12,478,336.80, 18,701,758.80 and 6,074,800.80

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Solution

The fourth proportional to 12,478,336.80, 18,701,758.80 and 6,074,800.80 is: 9,104,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,336.80 : 18,701,758.80 = 6,074,800.80 : x
  2. Step 2: Convert to fraction form
    12,478,336.80/18,701,758.80 = 6,074,800.80/x
  3. Step 3: Cross multiply
    12,478,336.80x = 18,701,758.80 × 6,074,800.80
  4. Step 4: Simplify right side
    12,478,336.80x = 113,609,459,319,647.05
  5. Step 5: Solve for x
    x = 113,609,459,319,647.05/12,478,336.80
  6. Step 6: Final answer
    x = 9,104,535.42

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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.