Home / 12,252,142.70-18,378,214.05-8,850,920.30

Finding the Fourth Proportional to 12,252,142.70, 18,378,214.05 and 8,850,920.30

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Solution

The fourth proportional to 12,252,142.70, 18,378,214.05 and 8,850,920.30 is: 13,276,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252,142.70 : 18,378,214.05 = 8,850,920.30 : x
  2. Step 2: Convert to fraction form
    12,252,142.70/18,378,214.05 = 8,850,920.30/x
  3. Step 3: Cross multiply
    12,252,142.70x = 18,378,214.05 × 8,850,920.30
  4. Step 4: Simplify right side
    12,252,142.70x = 162,664,107,812,890.25
  5. Step 5: Solve for x
    x = 162,664,107,812,890.25/12,252,142.70
  6. Step 6: Final answer
    x = 13,276,380.45

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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.