Home / 280,499,453.73-387,081,820.85-156,741,147.81

Finding the Fourth Proportional to 280,499,453.73, 387,081,820.85 and 156,741,147.81

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Solution

The fourth proportional to 280,499,453.73, 387,081,820.85 and 156,741,147.81 is: 216,298,634.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,499,453.73 : 387,081,820.85 = 156,741,147.81 : x
  2. Step 2: Convert to fraction form
    280,499,453.73/387,081,820.85 = 156,741,147.81/x
  3. Step 3: Cross multiply
    280,499,453.73x = 387,081,820.85 × 156,741,147.81
  4. Step 4: Simplify right side
    280,499,453.73x = 60,671,648,895,630,088
  5. Step 5: Solve for x
    x = 60,671,648,895,630,088/280,499,453.73
  6. Step 6: Final answer
    x = 216,298,634.77

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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.