Finding the Fourth Proportional to 29,990,966.70, 44,987,990.62 and 8,427,249.92
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Solution
The fourth proportional to 29,990,966.70, 44,987,990.62 and 8,427,249.92 is: 12,641,307.77
Step by Step Solution
- Step 1: Write the proportion equation
29,990,966.70 : 44,987,990.62 = 8,427,249.92 : x - Step 2: Convert to fraction form
29,990,966.70/44,987,990.62 = 8,427,249.92/x - Step 3: Cross multiply
29,990,966.70x = 44,987,990.62 × 8,427,249.92 - Step 4: Simplify right side
29,990,966.70x = 379,125,040,353,355.75 - Step 5: Solve for x
x = 379,125,040,353,355.75/29,990,966.70 - Step 6: Final answer
x = 12,641,307.77
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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.