Home / 28,081,619.98-38,751,892.21-15,691,815.22

Finding the Fourth Proportional to 28,081,619.98, 38,751,892.21 and 15,691,815.22

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Solution

The fourth proportional to 28,081,619.98, 38,751,892.21 and 15,691,815.22 is: 21,654,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,619.98 : 38,751,892.21 = 15,691,815.22 : x
  2. Step 2: Convert to fraction form
    28,081,619.98/38,751,892.21 = 15,691,815.22/x
  3. Step 3: Cross multiply
    28,081,619.98x = 38,751,892.21 × 15,691,815.22
  4. Step 4: Simplify right side
    28,081,619.98x = 608,087,531,984,677.50
  5. Step 5: Solve for x
    x = 608,087,531,984,677.50/28,081,619.98
  6. Step 6: Final answer
    x = 21,654,289.62

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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.