Finding the Fourth Proportional to 70,981,805.40, 106,472,708.10 and 27,852,415.80
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Solution
The fourth proportional to 70,981,805.40, 106,472,708.10 and 27,852,415.80 is: 41,778,623.70
Step by Step Solution
- Step 1: Write the proportion equation
70,981,805.40 : 106,472,708.10 = 27,852,415.80 : x - Step 2: Convert to fraction form
70,981,805.40/106,472,708.10 = 27,852,415.80/x - Step 3: Cross multiply
70,981,805.40x = 106,472,708.10 × 27,852,415.80 - Step 4: Simplify right side
70,981,805.40x = 2,965,522,137,353,228 - Step 5: Solve for x
x = 2,965,522,137,353,228/70,981,805.40 - Step 6: Final answer
x = 41,778,623.70
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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.