Finding the Fourth Proportional to 522,638,364.49, 721,258,643.50 and 284,492,236.03
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Solution
The fourth proportional to 522,638,364.49, 721,258,643.50 and 284,492,236.03 is: 392,608,920.79
Step by Step Solution
- Step 1: Write the proportion equation
522,638,364.49 : 721,258,643.50 = 284,492,236.03 : x - Step 2: Convert to fraction form
522,638,364.49/721,258,643.50 = 284,492,236.03/x - Step 3: Cross multiply
522,638,364.49x = 721,258,643.50 × 284,492,236.03 - Step 4: Simplify right side
522,638,364.49x = 205,192,484,242,765,216 - Step 5: Solve for x
x = 205,192,484,242,765,216/522,638,364.49 - Step 6: Final answer
x = 392,608,920.79
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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.