Finding the Fourth Proportional to 387,294,910.24, 534,451,414.08 and 211,079,121.18
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Solution
The fourth proportional to 387,294,910.24, 534,451,414.08 and 211,079,121.18 is: 291,280,705.77
Step by Step Solution
- Step 1: Write the proportion equation
387,294,910.24 : 534,451,414.08 = 211,079,121.18 : x - Step 2: Convert to fraction form
387,294,910.24/534,451,414.08 = 211,079,121.18/x - Step 3: Cross multiply
387,294,910.24x = 534,451,414.08 × 211,079,121.18 - Step 4: Simplify right side
387,294,910.24x = 112,811,534,797,414,672 - Step 5: Solve for x
x = 112,811,534,797,414,672/387,294,910.24 - Step 6: Final answer
x = 291,280,705.77
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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.