Home / 30,045,004.20-45,067,506.30-20,957,363.10

Finding the Fourth Proportional to 30,045,004.20, 45,067,506.30 and 20,957,363.10

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Solution

The fourth proportional to 30,045,004.20, 45,067,506.30 and 20,957,363.10 is: 31,436,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,045,004.20 : 45,067,506.30 = 20,957,363.10 : x
  2. Step 2: Convert to fraction form
    30,045,004.20/45,067,506.30 = 20,957,363.10/x
  3. Step 3: Cross multiply
    30,045,004.20x = 45,067,506.30 × 20,957,363.10
  4. Step 4: Simplify right side
    30,045,004.20x = 944,496,093,540,637.50
  5. Step 5: Solve for x
    x = 944,496,093,540,637.50/30,045,004.20
  6. Step 6: Final answer
    x = 31,436,044.65

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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.