Home / 20,391,653.70-30,587,480.55-12,329,496.90

Finding the Fourth Proportional to 20,391,653.70, 30,587,480.55 and 12,329,496.90

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Solution

The fourth proportional to 20,391,653.70, 30,587,480.55 and 12,329,496.90 is: 18,494,245.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,653.70 : 30,587,480.55 = 12,329,496.90 : x
  2. Step 2: Convert to fraction form
    20,391,653.70/30,587,480.55 = 12,329,496.90/x
  3. Step 3: Cross multiply
    20,391,653.70x = 30,587,480.55 × 12,329,496.90
  4. Step 4: Simplify right side
    20,391,653.70x = 377,128,246,620,035.31
  5. Step 5: Solve for x
    x = 377,128,246,620,035.31/20,391,653.70
  6. Step 6: Final answer
    x = 18,494,245.35

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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.