Home / 28,081,620.48-38,751,892.91-15,691,815.72

Finding the Fourth Proportional to 28,081,620.48, 38,751,892.91 and 15,691,815.72

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Solution

The fourth proportional to 28,081,620.48, 38,751,892.91 and 15,691,815.72 is: 21,654,290.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,620.48 : 38,751,892.91 = 15,691,815.72 : x
  2. Step 2: Convert to fraction form
    28,081,620.48/38,751,892.91 = 15,691,815.72/x
  3. Step 3: Cross multiply
    28,081,620.48x = 38,751,892.91 × 15,691,815.72
  4. Step 4: Simplify right side
    28,081,620.48x = 608,087,562,266,435.50
  5. Step 5: Solve for x
    x = 608,087,562,266,435.50/28,081,620.48
  6. Step 6: Final answer
    x = 21,654,290.31

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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.