Home / 12,511,916.10-18,767,874.15-7,704,015.30

Finding the Fourth Proportional to 12,511,916.10, 18,767,874.15 and 7,704,015.30

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Solution

The fourth proportional to 12,511,916.10, 18,767,874.15 and 7,704,015.30 is: 11,556,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511,916.10 : 18,767,874.15 = 7,704,015.30 : x
  2. Step 2: Convert to fraction form
    12,511,916.10/18,767,874.15 = 7,704,015.30/x
  3. Step 3: Cross multiply
    12,511,916.10x = 18,767,874.15 × 7,704,015.30
  4. Step 4: Simplify right side
    12,511,916.10x = 144,587,989,600,074.47
  5. Step 5: Solve for x
    x = 144,587,989,600,074.47/12,511,916.10
  6. Step 6: Final answer
    x = 11,556,022.95

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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.