Home / 5,171,085.63-7,757,158.19-1,978,896.69

Finding the Fourth Proportional to 5,171,085.63, 7,757,158.19 and 1,978,896.69

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Solution

The fourth proportional to 5,171,085.63, 7,757,158.19 and 1,978,896.69 is: 2,968,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171,085.63 : 7,757,158.19 = 1,978,896.69 : x
  2. Step 2: Convert to fraction form
    5,171,085.63/7,757,158.19 = 1,978,896.69/x
  3. Step 3: Cross multiply
    5,171,085.63x = 7,757,158.19 × 1,978,896.69
  4. Step 4: Simplify right side
    5,171,085.63x = 15,350,614,656,102.91
  5. Step 5: Solve for x
    x = 15,350,614,656,102.91/5,171,085.63
  6. Step 6: Final answer
    x = 2,968,547.76

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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.