Home / 12,140,020.94-18,210,818.72-3,621,218.54

Finding the Fourth Proportional to 12,140,020.94, 18,210,818.72 and 3,621,218.54

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Solution

The fourth proportional to 12,140,020.94, 18,210,818.72 and 3,621,218.54 is: 5,432,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,020.94 : 18,210,818.72 = 3,621,218.54 : x
  2. Step 2: Convert to fraction form
    12,140,020.94/18,210,818.72 = 3,621,218.54/x
  3. Step 3: Cross multiply
    12,140,020.94x = 18,210,818.72 × 3,621,218.54
  4. Step 4: Simplify right side
    12,140,020.94x = 65,945,354,295,442.02
  5. Step 5: Solve for x
    x = 65,945,354,295,442.02/12,140,020.94
  6. Step 6: Final answer
    x = 5,432,062.65

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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.