Home / 21,022,104.68-31,533,157.02-18,630,620.18

Finding the Fourth Proportional to 21,022,104.68, 31,533,157.02 and 18,630,620.18

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Solution

The fourth proportional to 21,022,104.68, 31,533,157.02 and 18,630,620.18 is: 27,945,930.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,104.68 : 31,533,157.02 = 18,630,620.18 : x
  2. Step 2: Convert to fraction form
    21,022,104.68/31,533,157.02 = 18,630,620.18/x
  3. Step 3: Cross multiply
    21,022,104.68x = 31,533,157.02 × 18,630,620.18
  4. Step 4: Simplify right side
    21,022,104.68x = 587,482,271,358,254.88
  5. Step 5: Solve for x
    x = 587,482,271,358,254.88/21,022,104.68
  6. Step 6: Final answer
    x = 27,945,930.27

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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.