Home / 5,178,253.86-7,146,027.90-2,855,233.80

Finding the Fourth Proportional to 5,178,253.86, 7,146,027.90 and 2,855,233.80

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Solution

The fourth proportional to 5,178,253.86, 7,146,027.90 and 2,855,233.80 is: 3,940,243.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,253.86 : 7,146,027.90 = 2,855,233.80 : x
  2. Step 2: Convert to fraction form
    5,178,253.86/7,146,027.90 = 2,855,233.80/x
  3. Step 3: Cross multiply
    5,178,253.86x = 7,146,027.90 × 2,855,233.80
  4. Step 4: Simplify right side
    5,178,253.86x = 20,403,580,395,823.02
  5. Step 5: Solve for x
    x = 20,403,580,395,823.02/5,178,253.86
  6. Step 6: Final answer
    x = 3,940,243.36

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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.