Home / 12,662,678.85-18,994,025.37-8,892,990.69

Finding the Fourth Proportional to 12,662,678.85, 18,994,025.37 and 8,892,990.69

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Solution

The fourth proportional to 12,662,678.85, 18,994,025.37 and 8,892,990.69 is: 13,339,491.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662,678.85 : 18,994,025.37 = 8,892,990.69 : x
  2. Step 2: Convert to fraction form
    12,662,678.85/18,994,025.37 = 8,892,990.69/x
  3. Step 3: Cross multiply
    12,662,678.85x = 18,994,025.37 × 8,892,990.69
  4. Step 4: Simplify right side
    12,662,678.85x = 168,913,690,781,033.81
  5. Step 5: Solve for x
    x = 168,913,690,781,033.81/12,662,678.85
  6. Step 6: Final answer
    x = 13,339,491.02

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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.