Home / 7,215,835.45-10,822,399.95-3,620,637.09

Finding the Fourth Proportional to 7,215,835.45, 10,822,399.95 and 3,620,637.09

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Solution

The fourth proportional to 7,215,835.45, 10,822,399.95 and 3,620,637.09 is: 5,430,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215,835.45 : 10,822,399.95 = 3,620,637.09 : x
  2. Step 2: Convert to fraction form
    7,215,835.45/10,822,399.95 = 3,620,637.09/x
  3. Step 3: Cross multiply
    7,215,835.45x = 10,822,399.95 × 3,620,637.09
  4. Step 4: Simplify right side
    7,215,835.45x = 39,183,982,661,784.14
  5. Step 5: Solve for x
    x = 39,183,982,661,784.14/7,215,835.45
  6. Step 6: Final answer
    x = 5,430,276.64

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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.