Finding the Fourth Proportional to 393,727,168.98, 543,375,258.93 and 217,530,551.70
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Solution
The fourth proportional to 393,727,168.98, 543,375,258.93 and 217,530,551.70 is: 300,209,711.62
Step by Step Solution
- Step 1: Write the proportion equation
393,727,168.98 : 543,375,258.93 = 217,530,551.70 : x - Step 2: Convert to fraction form
393,727,168.98/543,375,258.93 = 217,530,551.70/x - Step 3: Cross multiply
393,727,168.98x = 543,375,258.93 × 217,530,551.70 - Step 4: Simplify right side
393,727,168.98x = 118,200,719,855,173,232 - Step 5: Solve for x
x = 118,200,719,855,173,232/393,727,168.98 - Step 6: Final answer
x = 300,209,711.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.