Home / 280,629,778.46-387,271,600.16-155,190,462.32

Finding the Fourth Proportional to 280,629,778.46, 387,271,600.16 and 155,190,462.32

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Solution

The fourth proportional to 280,629,778.46, 387,271,600.16 and 155,190,462.32 is: 214,164,223.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,629,778.46 : 387,271,600.16 = 155,190,462.32 : x
  2. Step 2: Convert to fraction form
    280,629,778.46/387,271,600.16 = 155,190,462.32/x
  3. Step 3: Cross multiply
    280,629,778.46x = 387,271,600.16 × 155,190,462.32
  4. Step 4: Simplify right side
    280,629,778.46x = 60,100,858,672,428,808
  5. Step 5: Solve for x
    x = 60,100,858,672,428,808/280,629,778.46
  6. Step 6: Final answer
    x = 214,164,223.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.