Home / 13,892,607.40-20,831,912.70-8,214,572.20

Finding the Fourth Proportional to 13,892,607.40, 20,831,912.70 and 8,214,572.20

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Solution

The fourth proportional to 13,892,607.40, 20,831,912.70 and 8,214,572.20 is: 12,317,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892,607.40 : 20,831,912.70 = 8,214,572.20 : x
  2. Step 2: Convert to fraction form
    13,892,607.40/20,831,912.70 = 8,214,572.20/x
  3. Step 3: Cross multiply
    13,892,607.40x = 20,831,912.70 × 8,214,572.20
  4. Step 4: Simplify right side
    13,892,607.40x = 171,125,250,938,246.94
  5. Step 5: Solve for x
    x = 171,125,250,938,246.94/13,892,607.40
  6. Step 6: Final answer
    x = 12,317,720.21

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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.