Home / 10,890,014.40-16,335,021.60-9,189,403.20

Finding the Fourth Proportional to 10,890,014.40, 16,335,021.60 and 9,189,403.20

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Solution

The fourth proportional to 10,890,014.40, 16,335,021.60 and 9,189,403.20 is: 13,784,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890,014.40 : 16,335,021.60 = 9,189,403.20 : x
  2. Step 2: Convert to fraction form
    10,890,014.40/16,335,021.60 = 9,189,403.20/x
  3. Step 3: Cross multiply
    10,890,014.40x = 16,335,021.60 × 9,189,403.20
  4. Step 4: Simplify right side
    10,890,014.40x = 150,109,099,763,109.09
  5. Step 5: Solve for x
    x = 150,109,099,763,109.09/10,890,014.40
  6. Step 6: Final answer
    x = 13,784,104.80

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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.