Home / 30,329,540.40-45,494,310.60-21,720,196.20

Finding the Fourth Proportional to 30,329,540.40, 45,494,310.60 and 21,720,196.20

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Solution

The fourth proportional to 30,329,540.40, 45,494,310.60 and 21,720,196.20 is: 32,580,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,329,540.40 : 45,494,310.60 = 21,720,196.20 : x
  2. Step 2: Convert to fraction form
    30,329,540.40/45,494,310.60 = 21,720,196.20/x
  3. Step 3: Cross multiply
    30,329,540.40x = 45,494,310.60 × 21,720,196.20
  4. Step 4: Simplify right side
    30,329,540.40x = 988,145,352,215,739.75
  5. Step 5: Solve for x
    x = 988,145,352,215,739.75/30,329,540.40
  6. Step 6: Final answer
    x = 32,580,294.30

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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.