Finding the Fourth Proportional to 29,690,947.80, 40,974,516.54 and 28,330,458.84
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Solution
The fourth proportional to 29,690,947.80, 40,974,516.54 and 28,330,458.84 is: 39,096,995.56
Step by Step Solution
- Step 1: Write the proportion equation
29,690,947.80 : 40,974,516.54 = 28,330,458.84 : x - Step 2: Convert to fraction form
29,690,947.80/40,974,516.54 = 28,330,458.84/x - Step 3: Cross multiply
29,690,947.80x = 40,974,516.54 × 28,330,458.84 - Step 4: Simplify right side
29,690,947.80x = 1,160,826,854,325,369.25 - Step 5: Solve for x
x = 1,160,826,854,325,369.25/29,690,947.80 - Step 6: Final answer
x = 39,096,995.56
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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.