Home / 28,986,729.40-40,002,183.48-15,934,538.44

Finding the Fourth Proportional to 28,986,729.40, 40,002,183.48 and 15,934,538.44

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Solution

The fourth proportional to 28,986,729.40, 40,002,183.48 and 15,934,538.44 is: 21,989,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986,729.40 : 40,002,183.48 = 15,934,538.44 : x
  2. Step 2: Convert to fraction form
    28,986,729.40/40,002,183.48 = 15,934,538.44/x
  3. Step 3: Cross multiply
    28,986,729.40x = 40,002,183.48 × 15,934,538.44
  4. Step 4: Simplify right side
    28,986,729.40x = 637,416,330,345,992.88
  5. Step 5: Solve for x
    x = 637,416,330,345,992.88/28,986,729.40
  6. Step 6: Final answer
    x = 21,989,936.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.