Home / 15,195,669.66-20,968,103.07-12,106,029.15

Finding the Fourth Proportional to 15,195,669.66, 20,968,103.07 and 12,106,029.15

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Solution

The fourth proportional to 15,195,669.66, 20,968,103.07 and 12,106,029.15 is: 16,704,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195,669.66 : 20,968,103.07 = 12,106,029.15 : x
  2. Step 2: Convert to fraction form
    15,195,669.66/20,968,103.07 = 12,106,029.15/x
  3. Step 3: Cross multiply
    15,195,669.66x = 20,968,103.07 × 12,106,029.15
  4. Step 4: Simplify right side
    15,195,669.66x = 253,840,466,985,624.50
  5. Step 5: Solve for x
    x = 253,840,466,985,624.50/15,195,669.66
  6. Step 6: Final answer
    x = 16,704,789.76

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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.