Home / 21,457,408.80-32,191,815.60-9,321,664.80

Finding the Fourth Proportional to 21,457,408.80, 32,191,815.60 and 9,321,664.80

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Solution

The fourth proportional to 21,457,408.80, 32,191,815.60 and 9,321,664.80 is: 13,984,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457,408.80 : 32,191,815.60 = 9,321,664.80 : x
  2. Step 2: Convert to fraction form
    21,457,408.80/32,191,815.60 = 9,321,664.80/x
  3. Step 3: Cross multiply
    21,457,408.80x = 32,191,815.60 × 9,321,664.80
  4. Step 4: Simplify right side
    21,457,408.80x = 300,081,314,326,610.94
  5. Step 5: Solve for x
    x = 300,081,314,326,610.94/21,457,408.80
  6. Step 6: Final answer
    x = 13,984,974.47

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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.