Home / 8,420,135.22-12,630,118.62-2,662,869.82

Finding the Fourth Proportional to 8,420,135.22, 12,630,118.62 and 2,662,869.82

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Solution

The fourth proportional to 8,420,135.22, 12,630,118.62 and 2,662,869.82 is: 3,994,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,135.22 : 12,630,118.62 = 2,662,869.82 : x
  2. Step 2: Convert to fraction form
    8,420,135.22/12,630,118.62 = 2,662,869.82/x
  3. Step 3: Cross multiply
    8,420,135.22x = 12,630,118.62 × 2,662,869.82
  4. Step 4: Simplify right side
    8,420,135.22x = 33,632,361,696,218.04
  5. Step 5: Solve for x
    x = 33,632,361,696,218.04/8,420,135.22
  6. Step 6: Final answer
    x = 3,994,278.10

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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.