Finding the Fourth Proportional to 19,587,711.80, 29,381,567.70 and 10,629,759.80
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Solution
The fourth proportional to 19,587,711.80, 29,381,567.70 and 10,629,759.80 is: 15,944,639.70
Step by Step Solution
- Step 1: Write the proportion equation
19,587,711.80 : 29,381,567.70 = 10,629,759.80 : x - Step 2: Convert to fraction form
19,587,711.80/29,381,567.70 = 10,629,759.80/x - Step 3: Cross multiply
19,587,711.80x = 29,381,567.70 × 10,629,759.80 - Step 4: Simplify right side
19,587,711.80x = 312,319,007,198,438.50 - Step 5: Solve for x
x = 312,319,007,198,438.50/19,587,711.80 - Step 6: Final answer
x = 15,944,639.70
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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.