Home / 18,954,328.60-28,431,492.90-10,892,171.80

Finding the Fourth Proportional to 18,954,328.60, 28,431,492.90 and 10,892,171.80

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Solution

The fourth proportional to 18,954,328.60, 28,431,492.90 and 10,892,171.80 is: 16,338,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954,328.60 : 28,431,492.90 = 10,892,171.80 : x
  2. Step 2: Convert to fraction form
    18,954,328.60/28,431,492.90 = 10,892,171.80/x
  3. Step 3: Cross multiply
    18,954,328.60x = 28,431,492.90 × 10,892,171.80
  4. Step 4: Simplify right side
    18,954,328.60x = 309,680,705,197,280.25
  5. Step 5: Solve for x
    x = 309,680,705,197,280.25/18,954,328.60
  6. Step 6: Final answer
    x = 16,338,257.70

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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.