Finding the Fourth Proportional to 145,452,604.96, 200,728,861.46 and 79,377,369.99
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Solution
The fourth proportional to 145,452,604.96, 200,728,861.46 and 79,377,369.99 is: 109,543,098.99
Step by Step Solution
- Step 1: Write the proportion equation
145,452,604.96 : 200,728,861.46 = 79,377,369.99 : x - Step 2: Convert to fraction form
145,452,604.96/200,728,861.46 = 79,377,369.99/x - Step 3: Cross multiply
145,452,604.96x = 200,728,861.46 × 79,377,369.99 - Step 4: Simplify right side
145,452,604.96x = 15,933,329,103,781,872 - Step 5: Solve for x
x = 15,933,329,103,781,872/145,452,604.96 - Step 6: Final answer
x = 109,543,098.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.