Home / 13,892,645.40-20,831,969.70-8,214,610.20

Finding the Fourth Proportional to 13,892,645.40, 20,831,969.70 and 8,214,610.20

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Solution

The fourth proportional to 13,892,645.40, 20,831,969.70 and 8,214,610.20 is: 12,317,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892,645.40 : 20,831,969.70 = 8,214,610.20 : x
  2. Step 2: Convert to fraction form
    13,892,645.40/20,831,969.70 = 8,214,610.20/x
  3. Step 3: Cross multiply
    13,892,645.40x = 20,831,969.70 × 8,214,610.20
  4. Step 4: Simplify right side
    13,892,645.40x = 171,126,510,783,710.94
  5. Step 5: Solve for x
    x = 171,126,510,783,710.94/13,892,645.40
  6. Step 6: Final answer
    x = 12,317,777.20

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1.5x scale

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.