Home / 156,981,183.27-216,634,035.83-87,383,005.71

Finding the Fourth Proportional to 156,981,183.27, 216,634,035.83 and 87,383,005.71

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Solution

The fourth proportional to 156,981,183.27, 216,634,035.83 and 87,383,005.71 is: 120,588,549.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981,183.27 : 216,634,035.83 = 87,383,005.71 : x
  2. Step 2: Convert to fraction form
    156,981,183.27/216,634,035.83 = 87,383,005.71/x
  3. Step 3: Cross multiply
    156,981,183.27x = 216,634,035.83 × 87,383,005.71
  4. Step 4: Simplify right side
    156,981,183.27x = 18,930,133,189,913,236
  5. Step 5: Solve for x
    x = 18,930,133,189,913,236/156,981,183.27
  6. Step 6: Final answer
    x = 120,588,549.50

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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.