Finding the Fourth Proportional to 199,612,976.70, 298,971,567.45 and 163,781,168.70
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Solution
The fourth proportional to 199,612,976.70, 298,971,567.45 and 163,781,168.70 is: 245,304,255.94
Step by Step Solution
- Step 1: Write the proportion equation
199,612,976.70 : 298,971,567.45 = 163,781,168.70 : x - Step 2: Convert to fraction form
199,612,976.70/298,971,567.45 = 163,781,168.70/x - Step 3: Cross multiply
199,612,976.70x = 298,971,567.45 × 163,781,168.70 - Step 4: Simplify right side
199,612,976.70x = 48,965,912,725,031,872 - Step 5: Solve for x
x = 48,965,912,725,031,872/199,612,976.70 - Step 6: Final answer
x = 245,304,255.94
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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.