Home / 13,752,912.60-20,629,368.90-12,318,021.90

Finding the Fourth Proportional to 13,752,912.60, 20,629,368.90 and 12,318,021.90

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Solution

The fourth proportional to 13,752,912.60, 20,629,368.90 and 12,318,021.90 is: 18,477,032.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752,912.60 : 20,629,368.90 = 12,318,021.90 : x
  2. Step 2: Convert to fraction form
    13,752,912.60/20,629,368.90 = 12,318,021.90/x
  3. Step 3: Cross multiply
    13,752,912.60x = 20,629,368.90 × 12,318,021.90
  4. Step 4: Simplify right side
    13,752,912.60x = 254,113,017,893,378.91
  5. Step 5: Solve for x
    x = 254,113,017,893,378.91/13,752,912.60
  6. Step 6: Final answer
    x = 18,477,032.85

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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.