Finding the Fourth Proportional to 20,913,727.26, 28,863,649.98 and 11,746,369.74
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Solution
The fourth proportional to 20,913,727.26, 28,863,649.98 and 11,746,369.74 is: 16,211,510.29
Step by Step Solution
- Step 1: Write the proportion equation
20,913,727.26 : 28,863,649.98 = 11,746,369.74 : x - Step 2: Convert to fraction form
20,913,727.26/28,863,649.98 = 11,746,369.74/x - Step 3: Cross multiply
20,913,727.26x = 28,863,649.98 × 11,746,369.74 - Step 4: Simplify right side
20,913,727.26x = 339,043,104,711,023.62 - Step 5: Solve for x
x = 339,043,104,711,023.62/20,913,727.26 - Step 6: Final answer
x = 16,211,510.29
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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.