Home / 20,149,245.70-30,223,868.55-12,087,088.90

Finding the Fourth Proportional to 20,149,245.70, 30,223,868.55 and 12,087,088.90

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Solution

The fourth proportional to 20,149,245.70, 30,223,868.55 and 12,087,088.90 is: 18,130,633.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149,245.70 : 30,223,868.55 = 12,087,088.90 : x
  2. Step 2: Convert to fraction form
    20,149,245.70/30,223,868.55 = 12,087,088.90/x
  3. Step 3: Cross multiply
    20,149,245.70x = 30,223,868.55 × 12,087,088.90
  4. Step 4: Simplify right side
    20,149,245.70x = 365,318,586,065,764.12
  5. Step 5: Solve for x
    x = 365,318,586,065,764.12/20,149,245.70
  6. Step 6: Final answer
    x = 18,130,633.35

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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.