Finding the Fourth Proportional to 7,310,197.18, 10,965,658.65 and 1,918,863.10
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Solution
The fourth proportional to 7,310,197.18, 10,965,658.65 and 1,918,863.10 is: 2,878,389.90
Step by Step Solution
- Step 1: Write the proportion equation
7,310,197.18 : 10,965,658.65 = 1,918,863.10 : x - Step 2: Convert to fraction form
7,310,197.18/10,965,658.65 = 1,918,863.10/x - Step 3: Cross multiply
7,310,197.18x = 10,965,658.65 × 1,918,863.10 - Step 4: Simplify right side
7,310,197.18x = 21,041,597,750,680.82 - Step 5: Solve for x
x = 21,041,597,750,680.82/7,310,197.18 - Step 6: Final answer
x = 2,878,389.90
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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.