Home / 11,120,428.20-16,680,642.30-8,880,940.20

Finding the Fourth Proportional to 11,120,428.20, 16,680,642.30 and 8,880,940.20

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Solution

The fourth proportional to 11,120,428.20, 16,680,642.30 and 8,880,940.20 is: 13,321,410.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120,428.20 : 16,680,642.30 = 8,880,940.20 : x
  2. Step 2: Convert to fraction form
    11,120,428.20/16,680,642.30 = 8,880,940.20/x
  3. Step 3: Cross multiply
    11,120,428.20x = 16,680,642.30 × 8,880,940.20
  4. Step 4: Simplify right side
    11,120,428.20x = 148,139,786,763,890.47
  5. Step 5: Solve for x
    x = 148,139,786,763,890.47/11,120,428.20
  6. Step 6: Final answer
    x = 13,321,410.30

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Double scale
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Similar ratio
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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.