Home / 19,981,143.70-29,971,715.55-5,606,648.80

Finding the Fourth Proportional to 19,981,143.70, 29,971,715.55 and 5,606,648.80

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Solution

The fourth proportional to 19,981,143.70, 29,971,715.55 and 5,606,648.80 is: 8,409,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981,143.70 : 29,971,715.55 = 5,606,648.80 : x
  2. Step 2: Convert to fraction form
    19,981,143.70/29,971,715.55 = 5,606,648.80/x
  3. Step 3: Cross multiply
    19,981,143.70x = 29,971,715.55 × 5,606,648.80
  4. Step 4: Simplify right side
    19,981,143.70x = 168,040,883,022,348.84
  5. Step 5: Solve for x
    x = 168,040,883,022,348.84/19,981,143.70
  6. Step 6: Final answer
    x = 8,409,973.20

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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.