Home / 20,190,631.10-30,285,946.65-18,175,091.90

Finding the Fourth Proportional to 20,190,631.10, 30,285,946.65 and 18,175,091.90

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Solution

The fourth proportional to 20,190,631.10, 30,285,946.65 and 18,175,091.90 is: 27,262,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,631.10 : 30,285,946.65 = 18,175,091.90 : x
  2. Step 2: Convert to fraction form
    20,190,631.10/30,285,946.65 = 18,175,091.90/x
  3. Step 3: Cross multiply
    20,190,631.10x = 30,285,946.65 × 18,175,091.90
  4. Step 4: Simplify right side
    20,190,631.10x = 550,449,863,642,247.06
  5. Step 5: Solve for x
    x = 550,449,863,642,247.06/20,190,631.10
  6. Step 6: Final answer
    x = 27,262,637.85

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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.