Finding the Fourth Proportional to 73,905,605.80, 110,858,408.70 and 20,052,917.80
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Solution
The fourth proportional to 73,905,605.80, 110,858,408.70 and 20,052,917.80 is: 30,079,376.70
Step by Step Solution
- Step 1: Write the proportion equation
73,905,605.80 : 110,858,408.70 = 20,052,917.80 : x - Step 2: Convert to fraction form
73,905,605.80/110,858,408.70 = 20,052,917.80/x - Step 3: Cross multiply
73,905,605.80x = 110,858,408.70 × 20,052,917.80 - Step 4: Simplify right side
73,905,605.80x = 2,223,034,557,099,905 - Step 5: Solve for x
x = 2,223,034,557,099,905/73,905,605.80 - Step 6: Final answer
x = 30,079,376.70
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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.