Finding the Fourth Proportional to 7,981,412.58, 11,014,348.93 and 4,310,328.79
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Solution
The fourth proportional to 7,981,412.58, 11,014,348.93 and 4,310,328.79 is: 5,948,253.50
Step by Step Solution
- Step 1: Write the proportion equation
7,981,412.58 : 11,014,348.93 = 4,310,328.79 : x - Step 2: Convert to fraction form
7,981,412.58/11,014,348.93 = 4,310,328.79/x - Step 3: Cross multiply
7,981,412.58x = 11,014,348.93 × 4,310,328.79 - Step 4: Simplify right side
7,981,412.58x = 47,475,465,296,084.70 - Step 5: Solve for x
x = 47,475,465,296,084.70/7,981,412.58 - Step 6: Final answer
x = 5,948,253.50
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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.