Home / 12,662,819.45-18,994,089.06-3,078,207.20

Finding the Fourth Proportional to 12,662,819.45, 18,994,089.06 and 3,078,207.20

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Solution

The fourth proportional to 12,662,819.45, 18,994,089.06 and 3,078,207.20 is: 4,617,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662,819.45 : 18,994,089.06 = 3,078,207.20 : x
  2. Step 2: Convert to fraction form
    12,662,819.45/18,994,089.06 = 3,078,207.20/x
  3. Step 3: Cross multiply
    12,662,819.45x = 18,994,089.06 × 3,078,207.20
  4. Step 4: Simplify right side
    12,662,819.45x = 58,467,741,749,418.45
  5. Step 5: Solve for x
    x = 58,467,741,749,418.45/12,662,819.45
  6. Step 6: Final answer
    x = 4,617,276.74

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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.