Home / 13,389,941.72-20,086,804.02-4,289,910.65

Finding the Fourth Proportional to 13,389,941.72, 20,086,804.02 and 4,289,910.65

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Solution

The fourth proportional to 13,389,941.72, 20,086,804.02 and 4,289,910.65 is: 6,435,471.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389,941.72 : 20,086,804.02 = 4,289,910.65 : x
  2. Step 2: Convert to fraction form
    13,389,941.72/20,086,804.02 = 4,289,910.65/x
  3. Step 3: Cross multiply
    13,389,941.72x = 20,086,804.02 × 4,289,910.65
  4. Step 4: Simplify right side
    13,389,941.72x = 86,170,594,389,426.78
  5. Step 5: Solve for x
    x = 86,170,594,389,426.78/13,389,941.72
  6. Step 6: Final answer
    x = 6,435,471.96

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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.