Home / 18,723,252.40-28,084,878.60-11,511,401.20

Finding the Fourth Proportional to 18,723,252.40, 28,084,878.60 and 11,511,401.20

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Solution

The fourth proportional to 18,723,252.40, 28,084,878.60 and 11,511,401.20 is: 17,267,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,252.40 : 28,084,878.60 = 11,511,401.20 : x
  2. Step 2: Convert to fraction form
    18,723,252.40/28,084,878.60 = 11,511,401.20/x
  3. Step 3: Cross multiply
    18,723,252.40x = 28,084,878.60 × 11,511,401.20
  4. Step 4: Simplify right side
    18,723,252.40x = 323,296,305,217,894.31
  5. Step 5: Solve for x
    x = 323,296,305,217,894.31/18,723,252.40
  6. Step 6: Final answer
    x = 17,267,101.80

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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.