Home / 12,511,999.80-18,754,002.90-5,322,310.20

Finding the Fourth Proportional to 12,511,999.80, 18,754,002.90 and 5,322,310.20

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Solution

The fourth proportional to 12,511,999.80, 18,754,002.90 and 5,322,310.20 is: 7,977,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511,999.80 : 18,754,002.90 = 5,322,310.20 : x
  2. Step 2: Convert to fraction form
    12,511,999.80/18,754,002.90 = 5,322,310.20/x
  3. Step 3: Cross multiply
    12,511,999.80x = 18,754,002.90 × 5,322,310.20
  4. Step 4: Simplify right side
    12,511,999.80x = 99,814,620,925,499.58
  5. Step 5: Solve for x
    x = 99,814,620,925,499.58/12,511,999.80
  6. Step 6: Final answer
    x = 7,977,511.39

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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.