Home / 20,190,636.10-30,285,954.15-18,175,096.90

Finding the Fourth Proportional to 20,190,636.10, 30,285,954.15 and 18,175,096.90

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Solution

The fourth proportional to 20,190,636.10, 30,285,954.15 and 18,175,096.90 is: 27,262,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,636.10 : 30,285,954.15 = 18,175,096.90 : x
  2. Step 2: Convert to fraction form
    20,190,636.10/30,285,954.15 = 18,175,096.90/x
  3. Step 3: Cross multiply
    20,190,636.10x = 30,285,954.15 × 18,175,096.90
  4. Step 4: Simplify right side
    20,190,636.10x = 550,450,151,385,207.06
  5. Step 5: Solve for x
    x = 550,450,151,385,207.06/20,190,636.10
  6. Step 6: Final answer
    x = 27,262,645.35

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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.