Home / 3,147,709.60-4,721,564.40-2,191,115.80

Finding the Fourth Proportional to 3,147,709.60, 4,721,564.40 and 2,191,115.80

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Solution

The fourth proportional to 3,147,709.60, 4,721,564.40 and 2,191,115.80 is: 3,286,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147,709.60 : 4,721,564.40 = 2,191,115.80 : x
  2. Step 2: Convert to fraction form
    3,147,709.60/4,721,564.40 = 2,191,115.80/x
  3. Step 3: Cross multiply
    3,147,709.60x = 4,721,564.40 × 2,191,115.80
  4. Step 4: Simplify right side
    3,147,709.60x = 10,345,494,357,557.52
  5. Step 5: Solve for x
    x = 10,345,494,357,557.52/3,147,709.60
  6. Step 6: Final answer
    x = 3,286,673.70

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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.