Home / 10,138,543.68-15,208,009.92-3,315,142.56

Finding the Fourth Proportional to 10,138,543.68, 15,208,009.92 and 3,315,142.56

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Solution

The fourth proportional to 10,138,543.68, 15,208,009.92 and 3,315,142.56 is: 4,972,777.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138,543.68 : 15,208,009.92 = 3,315,142.56 : x
  2. Step 2: Convert to fraction form
    10,138,543.68/15,208,009.92 = 3,315,142.56/x
  3. Step 3: Cross multiply
    10,138,543.68x = 15,208,009.92 × 3,315,142.56
  4. Step 4: Simplify right side
    10,138,543.68x = 50,416,720,938,694.20
  5. Step 5: Solve for x
    x = 50,416,720,938,694.20/10,138,543.68
  6. Step 6: Final answer
    x = 4,972,777.41

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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.