Home / 28,977,137.20-43,493,699.40-17,639,729.20

Finding the Fourth Proportional to 28,977,137.20, 43,493,699.40 and 17,639,729.20

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Solution

The fourth proportional to 28,977,137.20, 43,493,699.40 and 17,639,729.20 is: 26,476,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977,137.20 : 43,493,699.40 = 17,639,729.20 : x
  2. Step 2: Convert to fraction form
    28,977,137.20/43,493,699.40 = 17,639,729.20/x
  3. Step 3: Cross multiply
    28,977,137.20x = 43,493,699.40 × 17,639,729.20
  4. Step 4: Simplify right side
    28,977,137.20x = 767,217,079,322,202.38
  5. Step 5: Solve for x
    x = 767,217,079,322,202.38/28,977,137.20
  6. Step 6: Final answer
    x = 26,476,634.80

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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.