Home / 13,790,492.20-20,685,738.30-12,302,457.40

Finding the Fourth Proportional to 13,790,492.20, 20,685,738.30 and 12,302,457.40

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Solution

The fourth proportional to 13,790,492.20, 20,685,738.30 and 12,302,457.40 is: 18,453,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,492.20 : 20,685,738.30 = 12,302,457.40 : x
  2. Step 2: Convert to fraction form
    13,790,492.20/20,685,738.30 = 12,302,457.40/x
  3. Step 3: Cross multiply
    13,790,492.20x = 20,685,738.30 × 12,302,457.40
  4. Step 4: Simplify right side
    13,790,492.20x = 254,485,414,223,298.44
  5. Step 5: Solve for x
    x = 254,485,414,223,298.44/13,790,492.20
  6. Step 6: Final answer
    x = 18,453,686.10

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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.