Home / 12,455,566.20-18,697,346.10-9,628,212.60

Finding the Fourth Proportional to 12,455,566.20, 18,697,346.10 and 9,628,212.60

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Solution

The fourth proportional to 12,455,566.20, 18,697,346.10 and 9,628,212.60 is: 14,453,138.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,566.20 : 18,697,346.10 = 9,628,212.60 : x
  2. Step 2: Convert to fraction form
    12,455,566.20/18,697,346.10 = 9,628,212.60/x
  3. Step 3: Cross multiply
    12,455,566.20x = 18,697,346.10 × 9,628,212.60
  4. Step 4: Simplify right side
    12,455,566.20x = 180,022,023,306,580.88
  5. Step 5: Solve for x
    x = 180,022,023,306,580.88/12,455,566.20
  6. Step 6: Final answer
    x = 14,453,138.49

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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.