Finding the Fourth Proportional to 79,193,569.08, 109,123,268.94 and 63,661,320.12
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Solution
The fourth proportional to 79,193,569.08, 109,123,268.94 and 63,661,320.12 is: 87,720,902.56
Step by Step Solution
- Step 1: Write the proportion equation
79,193,569.08 : 109,123,268.94 = 63,661,320.12 : x - Step 2: Convert to fraction form
79,193,569.08/109,123,268.94 = 63,661,320.12/x - Step 3: Cross multiply
79,193,569.08x = 109,123,268.94 × 63,661,320.12 - Step 4: Simplify right side
79,193,569.08x = 6,946,931,356,530,193 - Step 5: Solve for x
x = 6,946,931,356,530,193/79,193,569.08 - Step 6: Final answer
x = 87,720,902.56
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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.