Home / 12,455,917.80-18,683,876.70-6,787,213.80

Finding the Fourth Proportional to 12,455,917.80, 18,683,876.70 and 6,787,213.80

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Solution

The fourth proportional to 12,455,917.80, 18,683,876.70 and 6,787,213.80 is: 10,180,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,917.80 : 18,683,876.70 = 6,787,213.80 : x
  2. Step 2: Convert to fraction form
    12,455,917.80/18,683,876.70 = 6,787,213.80/x
  3. Step 3: Cross multiply
    12,455,917.80x = 18,683,876.70 × 6,787,213.80
  4. Step 4: Simplify right side
    12,455,917.80x = 126,811,465,775,738.45
  5. Step 5: Solve for x
    x = 126,811,465,775,738.45/12,455,917.80
  6. Step 6: Final answer
    x = 10,180,820.70

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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.