Home / 12,080,801.80-18,121,202.70-11,520,929.80

Finding the Fourth Proportional to 12,080,801.80, 18,121,202.70 and 11,520,929.80

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Solution

The fourth proportional to 12,080,801.80, 18,121,202.70 and 11,520,929.80 is: 17,281,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080,801.80 : 18,121,202.70 = 11,520,929.80 : x
  2. Step 2: Convert to fraction form
    12,080,801.80/18,121,202.70 = 11,520,929.80/x
  3. Step 3: Cross multiply
    12,080,801.80x = 18,121,202.70 × 11,520,929.80
  4. Step 4: Simplify right side
    12,080,801.80x = 208,773,104,198,270.47
  5. Step 5: Solve for x
    x = 208,773,104,198,270.47/12,080,801.80
  6. Step 6: Final answer
    x = 17,281,394.70

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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.