Home / 20,219,103.10-30,328,654.65-14,479,540.30

Finding the Fourth Proportional to 20,219,103.10, 30,328,654.65 and 14,479,540.30

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Solution

The fourth proportional to 20,219,103.10, 30,328,654.65 and 14,479,540.30 is: 21,719,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,103.10 : 30,328,654.65 = 14,479,540.30 : x
  2. Step 2: Convert to fraction form
    20,219,103.10/30,328,654.65 = 14,479,540.30/x
  3. Step 3: Cross multiply
    20,219,103.10x = 30,328,654.65 × 14,479,540.30
  4. Step 4: Simplify right side
    20,219,103.10x = 439,144,977,249,457.38
  5. Step 5: Solve for x
    x = 439,144,977,249,457.38/20,219,103.10
  6. Step 6: Final answer
    x = 21,719,310.45

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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.