Finding the Fourth Proportional to 10,198,513.30, 15,297,769.95 and 7,013,463.70
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Solution
The fourth proportional to 10,198,513.30, 15,297,769.95 and 7,013,463.70 is: 10,520,195.55
Step by Step Solution
- Step 1: Write the proportion equation
10,198,513.30 : 15,297,769.95 = 7,013,463.70 : x - Step 2: Convert to fraction form
10,198,513.30/15,297,769.95 = 7,013,463.70/x - Step 3: Cross multiply
10,198,513.30x = 15,297,769.95 × 7,013,463.70 - Step 4: Simplify right side
10,198,513.30x = 107,290,354,235,275.81 - Step 5: Solve for x
x = 107,290,354,235,275.81/10,198,513.30 - Step 6: Final answer
x = 10,520,195.55
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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.