Home / 18,611,960-27,917,950.20-8,507,495.12

Finding the Fourth Proportional to 18,611,960, 27,917,950.20 and 8,507,495.12

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Solution

The fourth proportional to 18,611,960, 27,917,950.20 and 8,507,495.12 is: 12,761,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611,960 : 27,917,950.20 = 8,507,495.12 : x
  2. Step 2: Convert to fraction form
    18,611,960/27,917,950.20 = 8,507,495.12/x
  3. Step 3: Cross multiply
    18,611,960x = 27,917,950.20 × 8,507,495.12
  4. Step 4: Simplify right side
    18,611,960x = 237,511,825,086,903
  5. Step 5: Solve for x
    x = 237,511,825,086,903/18,611,960
  6. Step 6: Final answer
    x = 12,761,247.34

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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.