Home / 21,981,824.68-30,338,550.54-12,195,421.84

Finding the Fourth Proportional to 21,981,824.68, 30,338,550.54 and 12,195,421.84

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Solution

The fourth proportional to 21,981,824.68, 30,338,550.54 and 12,195,421.84 is: 16,831,697.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981,824.68 : 30,338,550.54 = 12,195,421.84 : x
  2. Step 2: Convert to fraction form
    21,981,824.68/30,338,550.54 = 12,195,421.84/x
  3. Step 3: Cross multiply
    21,981,824.68x = 30,338,550.54 × 12,195,421.84
  4. Step 4: Simplify right side
    21,981,824.68x = 369,991,421,849,459.75
  5. Step 5: Solve for x
    x = 369,991,421,849,459.75/21,981,824.68
  6. Step 6: Final answer
    x = 16,831,697.42

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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.