Home / 12,939,969.60-19,409,954.40-6,204,916.80

Finding the Fourth Proportional to 12,939,969.60, 19,409,954.40 and 6,204,916.80

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Solution

The fourth proportional to 12,939,969.60, 19,409,954.40 and 6,204,916.80 is: 9,307,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,969.60 : 19,409,954.40 = 6,204,916.80 : x
  2. Step 2: Convert to fraction form
    12,939,969.60/19,409,954.40 = 6,204,916.80/x
  3. Step 3: Cross multiply
    12,939,969.60x = 19,409,954.40 × 6,204,916.80
  4. Step 4: Simplify right side
    12,939,969.60x = 120,437,152,143,793.91
  5. Step 5: Solve for x
    x = 120,437,152,143,793.91/12,939,969.60
  6. Step 6: Final answer
    x = 9,307,375.20

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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.