Home / 28,985,984.88-39,996,789.36-17,968,720.88

Finding the Fourth Proportional to 28,985,984.88, 39,996,789.36 and 17,968,720.88

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Solution

The fourth proportional to 28,985,984.88, 39,996,789.36 and 17,968,720.88 is: 24,794,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985,984.88 : 39,996,789.36 = 17,968,720.88 : x
  2. Step 2: Convert to fraction form
    28,985,984.88/39,996,789.36 = 17,968,720.88/x
  3. Step 3: Cross multiply
    28,985,984.88x = 39,996,789.36 × 17,968,720.88
  4. Step 4: Simplify right side
    28,985,984.88x = 718,691,144,105,993.75
  5. Step 5: Solve for x
    x = 718,691,144,105,993.75/28,985,984.88
  6. Step 6: Final answer
    x = 24,794,435.90

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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.