Finding the Fourth Proportional to 71,696,415.49, 98,935,393.94 and 40,328,219.46
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Solution
The fourth proportional to 71,696,415.49, 98,935,393.94 and 40,328,219.46 is: 55,649,759.50
Step by Step Solution
- Step 1: Write the proportion equation
71,696,415.49 : 98,935,393.94 = 40,328,219.46 : x - Step 2: Convert to fraction form
71,696,415.49/98,935,393.94 = 40,328,219.46/x - Step 3: Cross multiply
71,696,415.49x = 98,935,393.94 × 40,328,219.46 - Step 4: Simplify right side
71,696,415.49x = 3,989,888,278,477,556 - Step 5: Solve for x
x = 3,989,888,278,477,556/71,696,415.49 - Step 6: Final answer
x = 55,649,759.50
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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.