Home / 256,639,249.96-384,981,496.68-72,408,339.88

Finding the Fourth Proportional to 256,639,249.96, 384,981,496.68 and 72,408,339.88

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Solution

The fourth proportional to 256,639,249.96, 384,981,496.68 and 72,408,339.88 is: 108,618,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,639,249.96 : 384,981,496.68 = 72,408,339.88 : x
  2. Step 2: Convert to fraction form
    256,639,249.96/384,981,496.68 = 72,408,339.88/x
  3. Step 3: Cross multiply
    256,639,249.96x = 384,981,496.68 × 72,408,339.88
  4. Step 4: Simplify right side
    256,639,249.96x = 27,875,871,059,116,532
  5. Step 5: Solve for x
    x = 27,875,871,059,116,532/256,639,249.96
  6. Step 6: Final answer
    x = 108,618,892.33

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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.