Home / 156,981,182.27-216,634,034.45-87,383,004.71

Finding the Fourth Proportional to 156,981,182.27, 216,634,034.45 and 87,383,004.71

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Solution

The fourth proportional to 156,981,182.27, 216,634,034.45 and 87,383,004.71 is: 120,588,548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981,182.27 : 216,634,034.45 = 87,383,004.71 : x
  2. Step 2: Convert to fraction form
    156,981,182.27/216,634,034.45 = 87,383,004.71/x
  3. Step 3: Cross multiply
    156,981,182.27x = 216,634,034.45 × 87,383,004.71
  4. Step 4: Simplify right side
    156,981,182.27x = 18,930,132,851,825,936
  5. Step 5: Solve for x
    x = 18,930,132,851,825,936/156,981,182.27
  6. Step 6: Final answer
    x = 120,588,548.12

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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.