Home / 21,081,036.30-31,621,554.45-10,305,249.90

Finding the Fourth Proportional to 21,081,036.30, 31,621,554.45 and 10,305,249.90

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Solution

The fourth proportional to 21,081,036.30, 31,621,554.45 and 10,305,249.90 is: 15,457,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081,036.30 : 31,621,554.45 = 10,305,249.90 : x
  2. Step 2: Convert to fraction form
    21,081,036.30/31,621,554.45 = 10,305,249.90/x
  3. Step 3: Cross multiply
    21,081,036.30x = 31,621,554.45 × 10,305,249.90
  4. Step 4: Simplify right side
    21,081,036.30x = 325,868,020,833,707.06
  5. Step 5: Solve for x
    x = 325,868,020,833,707.06/21,081,036.30
  6. Step 6: Final answer
    x = 15,457,874.85

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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.