Home / 19,821,485.70-29,723,371.20-7,686,916.20

Finding the Fourth Proportional to 19,821,485.70, 29,723,371.20 and 7,686,916.20

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Solution

The fourth proportional to 19,821,485.70, 29,723,371.20 and 7,686,916.20 is: 11,526,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821,485.70 : 29,723,371.20 = 7,686,916.20 : x
  2. Step 2: Convert to fraction form
    19,821,485.70/29,723,371.20 = 7,686,916.20/x
  3. Step 3: Cross multiply
    19,821,485.70x = 29,723,371.20 × 7,686,916.20
  4. Step 4: Simplify right side
    19,821,485.70x = 228,481,063,595,893.44
  5. Step 5: Solve for x
    x = 228,481,063,595,893.44/19,821,485.70
  6. Step 6: Final answer
    x = 11,526,939.36

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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.