Finding the Fourth Proportional to 55,276,245.70, 82,914,368.55 and 39,120,439.30
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Solution
The fourth proportional to 55,276,245.70, 82,914,368.55 and 39,120,439.30 is: 58,680,658.95
Step by Step Solution
- Step 1: Write the proportion equation
55,276,245.70 : 82,914,368.55 = 39,120,439.30 : x - Step 2: Convert to fraction form
55,276,245.70/82,914,368.55 = 39,120,439.30/x - Step 3: Cross multiply
55,276,245.70x = 82,914,368.55 × 39,120,439.30 - Step 4: Simplify right side
55,276,245.70x = 3,243,646,521,958,103.50 - Step 5: Solve for x
x = 3,243,646,521,958,103.50/55,276,245.70 - Step 6: Final answer
x = 58,680,658.95
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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.