Home / 21,990,158.73-30,346,423.05-12,200,579.42

Finding the Fourth Proportional to 21,990,158.73, 30,346,423.05 and 12,200,579.42

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Solution

The fourth proportional to 21,990,158.73, 30,346,423.05 and 12,200,579.42 is: 16,836,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,990,158.73 : 30,346,423.05 = 12,200,579.42 : x
  2. Step 2: Convert to fraction form
    21,990,158.73/30,346,423.05 = 12,200,579.42/x
  3. Step 3: Cross multiply
    21,990,158.73x = 30,346,423.05 × 12,200,579.42
  4. Step 4: Simplify right side
    21,990,158.73x = 370,243,944,382,711.50
  5. Step 5: Solve for x
    x = 370,243,944,382,711.50/21,990,158.73
  6. Step 6: Final answer
    x = 16,836,801.81

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1.5x scale

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.