Home / 15,065,794.15-20,789,913.05-8,190,216.07

Finding the Fourth Proportional to 15,065,794.15, 20,789,913.05 and 8,190,216.07

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Solution

The fourth proportional to 15,065,794.15, 20,789,913.05 and 8,190,216.07 is: 11,302,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065,794.15 : 20,789,913.05 = 8,190,216.07 : x
  2. Step 2: Convert to fraction form
    15,065,794.15/20,789,913.05 = 8,190,216.07/x
  3. Step 3: Cross multiply
    15,065,794.15x = 20,789,913.05 × 8,190,216.07
  4. Step 4: Simplify right side
    15,065,794.15x = 170,273,879,811,112.09
  5. Step 5: Solve for x
    x = 170,273,879,811,112.09/15,065,794.15
  6. Step 6: Final answer
    x = 11,302,018.21

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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.