Finding the Fourth Proportional to 12,676,673.88, 17,494,205.85 and 7,169,940.99
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Solution
The fourth proportional to 12,676,673.88, 17,494,205.85 and 7,169,940.99 is: 9,894,742.49
Step by Step Solution
- Step 1: Write the proportion equation
12,676,673.88 : 17,494,205.85 = 7,169,940.99 : x - Step 2: Convert to fraction form
12,676,673.88/17,494,205.85 = 7,169,940.99/x - Step 3: Cross multiply
12,676,673.88x = 17,494,205.85 × 7,169,940.99 - Step 4: Simplify right side
12,676,673.88x = 125,432,423,611,412.81 - Step 5: Solve for x
x = 125,432,423,611,412.81/12,676,673.88 - Step 6: Final answer
x = 9,894,742.49
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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.