Home / 12,446,646.40-18,669,969.60-11,690,819.20

Finding the Fourth Proportional to 12,446,646.40, 18,669,969.60 and 11,690,819.20

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Solution

The fourth proportional to 12,446,646.40, 18,669,969.60 and 11,690,819.20 is: 17,536,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446,646.40 : 18,669,969.60 = 11,690,819.20 : x
  2. Step 2: Convert to fraction form
    12,446,646.40/18,669,969.60 = 11,690,819.20/x
  3. Step 3: Cross multiply
    12,446,646.40x = 18,669,969.60 × 11,690,819.20
  4. Step 4: Simplify right side
    12,446,646.40x = 218,267,239,063,096.31
  5. Step 5: Solve for x
    x = 218,267,239,063,096.31/12,446,646.40
  6. Step 6: Final answer
    x = 17,536,228.80

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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.