Home / 5,215,638.47-7,823,374.52-1,429,121.34

Finding the Fourth Proportional to 5,215,638.47, 7,823,374.52 and 1,429,121.34

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Solution

The fourth proportional to 5,215,638.47, 7,823,374.52 and 1,429,121.34 is: 2,143,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,638.47 : 7,823,374.52 = 1,429,121.34 : x
  2. Step 2: Convert to fraction form
    5,215,638.47/7,823,374.52 = 1,429,121.34/x
  3. Step 3: Cross multiply
    5,215,638.47x = 7,823,374.52 × 1,429,121.34
  4. Step 4: Simplify right side
    5,215,638.47x = 11,180,551,470,198.65
  5. Step 5: Solve for x
    x = 11,180,551,470,198.65/5,215,638.47
  6. Step 6: Final answer
    x = 2,143,659.22

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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.