Finding the Fourth Proportional to 7,788,242.70, 11,682,364.05 and 2,738,897.10
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Solution
The fourth proportional to 7,788,242.70, 11,682,364.05 and 2,738,897.10 is: 4,108,345.65
Step by Step Solution
- Step 1: Write the proportion equation
7,788,242.70 : 11,682,364.05 = 2,738,897.10 : x - Step 2: Convert to fraction form
7,788,242.70/11,682,364.05 = 2,738,897.10/x - Step 3: Cross multiply
7,788,242.70x = 11,682,364.05 × 2,738,897.10 - Step 4: Simplify right side
7,788,242.70x = 31,996,793,017,689.26 - Step 5: Solve for x
x = 31,996,793,017,689.26/7,788,242.70 - Step 6: Final answer
x = 4,108,345.65
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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.