Home / 156,981,214.12-216,634,078.50-87,383,036.52

Finding the Fourth Proportional to 156,981,214.12, 216,634,078.50 and 87,383,036.52

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Solution

The fourth proportional to 156,981,214.12, 216,634,078.50 and 87,383,036.52 is: 120,588,592.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981,214.12 : 216,634,078.50 = 87,383,036.52 : x
  2. Step 2: Convert to fraction form
    156,981,214.12/216,634,078.50 = 87,383,036.52/x
  3. Step 3: Cross multiply
    156,981,214.12x = 216,634,078.50 × 87,383,036.52
  4. Step 4: Simplify right side
    156,981,214.12x = 18,930,143,593,042,044
  5. Step 5: Solve for x
    x = 18,930,143,593,042,044/156,981,214.12
  6. Step 6: Final answer
    x = 120,588,592.08

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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.