Home / 280,499,455.23-387,081,822.92-156,741,149.31

Finding the Fourth Proportional to 280,499,455.23, 387,081,822.92 and 156,741,149.31

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Solution

The fourth proportional to 280,499,455.23, 387,081,822.92 and 156,741,149.31 is: 216,298,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,499,455.23 : 387,081,822.92 = 156,741,149.31 : x
  2. Step 2: Convert to fraction form
    280,499,455.23/387,081,822.92 = 156,741,149.31/x
  3. Step 3: Cross multiply
    280,499,455.23x = 387,081,822.92 × 156,741,149.31
  4. Step 4: Simplify right side
    280,499,455.23x = 60,671,649,800,707,000
  5. Step 5: Solve for x
    x = 60,671,649,800,707,000/280,499,455.23
  6. Step 6: Final answer
    x = 216,298,636.84

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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.