Finding the Fourth Proportional to 80,745,480.79, 121,112,344.94 and 31,552,119.74
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Solution
The fourth proportional to 80,745,480.79, 121,112,344.94 and 31,552,119.74 is: 47,325,883.41
Step by Step Solution
- Step 1: Write the proportion equation
80,745,480.79 : 121,112,344.94 = 31,552,119.74 : x - Step 2: Convert to fraction form
80,745,480.79/121,112,344.94 = 31,552,119.74/x - Step 3: Cross multiply
80,745,480.79x = 121,112,344.94 × 31,552,119.74 - Step 4: Simplify right side
80,745,480.79x = 3,821,351,209,684,083.50 - Step 5: Solve for x
x = 3,821,351,209,684,083.50/80,745,480.79 - Step 6: Final answer
x = 47,325,883.41
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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.