Home / 12,120,919.50-16,727,224.68-6,614,649.72

Finding the Fourth Proportional to 12,120,919.50, 16,727,224.68 and 6,614,649.72

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Solution

The fourth proportional to 12,120,919.50, 16,727,224.68 and 6,614,649.72 is: 9,128,410.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120,919.50 : 16,727,224.68 = 6,614,649.72 : x
  2. Step 2: Convert to fraction form
    12,120,919.50/16,727,224.68 = 6,614,649.72/x
  3. Step 3: Cross multiply
    12,120,919.50x = 16,727,224.68 × 6,614,649.72
  4. Step 4: Simplify right side
    12,120,919.50x = 110,644,732,045,939.08
  5. Step 5: Solve for x
    x = 110,644,732,045,939.08/12,120,919.50
  6. Step 6: Final answer
    x = 9,128,410.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.