Finding the Fourth Proportional to 163,735,233.40, 245,437,512.90 and 81,727,982.20
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Solution
The fourth proportional to 163,735,233.40, 245,437,512.90 and 81,727,982.20 is: 122,509,445.70
Step by Step Solution
- Step 1: Write the proportion equation
163,735,233.40 : 245,437,512.90 = 81,727,982.20 : x - Step 2: Convert to fraction form
163,735,233.40/245,437,512.90 = 81,727,982.20/x - Step 3: Cross multiply
163,735,233.40x = 245,437,512.90 × 81,727,982.20 - Step 4: Simplify right side
163,735,233.40x = 20,059,112,685,503,472 - Step 5: Solve for x
x = 20,059,112,685,503,472/163,735,233.40 - Step 6: Final answer
x = 122,509,445.70
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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.