Home / 7,619,285.72-11,428,992.66-1,939,511

Finding the Fourth Proportional to 7,619,285.72, 11,428,992.66 and 1,939,511

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Solution

The fourth proportional to 7,619,285.72, 11,428,992.66 and 1,939,511 is: 2,909,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619,285.72 : 11,428,992.66 = 1,939,511 : x
  2. Step 2: Convert to fraction form
    7,619,285.72/11,428,992.66 = 1,939,511/x
  3. Step 3: Cross multiply
    7,619,285.72x = 11,428,992.66 × 1,939,511
  4. Step 4: Simplify right side
    7,619,285.72x = 22,166,656,982,989.26
  5. Step 5: Solve for x
    x = 22,166,656,982,989.26/7,619,285.72
  6. Step 6: Final answer
    x = 2,909,282.81

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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.