Home / 280,546,977.35-387,166,785.32-156,787,650.83

Finding the Fourth Proportional to 280,546,977.35, 387,166,785.32 and 156,787,650.83

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Solution

The fourth proportional to 280,546,977.35, 387,166,785.32 and 156,787,650.83 is: 216,373,640.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,546,977.35 : 387,166,785.32 = 156,787,650.83 : x
  2. Step 2: Convert to fraction form
    280,546,977.35/387,166,785.32 = 156,787,650.83/x
  3. Step 3: Cross multiply
    280,546,977.35x = 387,166,785.32 × 156,787,650.83
  4. Step 4: Simplify right side
    280,546,977.35x = 60,702,970,749,725,736
  5. Step 5: Solve for x
    x = 60,702,970,749,725,736/280,546,977.35
  6. Step 6: Final answer
    x = 216,373,640.25

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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.