Home / 12,446,665.35-18,669,998.03-12,366,949.20

Finding the Fourth Proportional to 12,446,665.35, 18,669,998.03 and 12,366,949.20

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Solution

The fourth proportional to 12,446,665.35, 18,669,998.03 and 12,366,949.20 is: 18,550,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446,665.35 : 18,669,998.03 = 12,366,949.20 : x
  2. Step 2: Convert to fraction form
    12,446,665.35/18,669,998.03 = 12,366,949.20/x
  3. Step 3: Cross multiply
    12,446,665.35x = 18,669,998.03 × 12,366,949.20
  4. Step 4: Simplify right side
    12,446,665.35x = 230,890,917,201,110.06
  5. Step 5: Solve for x
    x = 230,890,917,201,110.06/12,446,665.35
  6. Step 6: Final answer
    x = 18,550,423.80

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1.5x scale

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.