Home / 216,981,774.40-299,149,918.24-156,580,081.92

Finding the Fourth Proportional to 216,981,774.40, 299,149,918.24 and 156,580,081.92

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Solution

The fourth proportional to 216,981,774.40, 299,149,918.24 and 156,580,081.92 is: 215,874,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,981,774.40 : 299,149,918.24 = 156,580,081.92 : x
  2. Step 2: Convert to fraction form
    216,981,774.40/299,149,918.24 = 156,580,081.92/x
  3. Step 3: Cross multiply
    216,981,774.40x = 299,149,918.24 × 156,580,081.92
  4. Step 4: Simplify right side
    216,981,774.40x = 46,840,918,704,380,496
  5. Step 5: Solve for x
    x = 46,840,918,704,380,496/216,981,774.40
  6. Step 6: Final answer
    x = 215,874,899.33

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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.