Home / 12,151,477.60-18,227,216.40-11,962,520.80

Finding the Fourth Proportional to 12,151,477.60, 18,227,216.40 and 11,962,520.80

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Solution

The fourth proportional to 12,151,477.60, 18,227,216.40 and 11,962,520.80 is: 17,943,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151,477.60 : 18,227,216.40 = 11,962,520.80 : x
  2. Step 2: Convert to fraction form
    12,151,477.60/18,227,216.40 = 11,962,520.80/x
  3. Step 3: Cross multiply
    12,151,477.60x = 18,227,216.40 × 11,962,520.80
  4. Step 4: Simplify right side
    12,151,477.60x = 218,043,455,311,101.12
  5. Step 5: Solve for x
    x = 218,043,455,311,101.12/12,151,477.60
  6. Step 6: Final answer
    x = 17,943,781.20

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1.5x scale

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.