Finding the Fourth Proportional to 19,723,622.70, 29,585,434.05 and 12,921,177.90
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Solution
The fourth proportional to 19,723,622.70, 29,585,434.05 and 12,921,177.90 is: 19,381,766.85
Step by Step Solution
- Step 1: Write the proportion equation
19,723,622.70 : 29,585,434.05 = 12,921,177.90 : x - Step 2: Convert to fraction form
19,723,622.70/29,585,434.05 = 12,921,177.90/x - Step 3: Cross multiply
19,723,622.70x = 29,585,434.05 × 12,921,177.90 - Step 4: Simplify right side
19,723,622.70x = 382,278,656,608,767.50 - Step 5: Solve for x
x = 382,278,656,608,767.50/19,723,622.70 - Step 6: Final answer
x = 19,381,766.85
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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.