Finding the Fourth Proportional to 197,216,701.98, 272,246,222.12 and 117,859,766.73
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Solution
The fourth proportional to 197,216,701.98, 272,246,222.12 and 117,859,766.73 is: 162,698,574.26
Step by Step Solution
- Step 1: Write the proportion equation
197,216,701.98 : 272,246,222.12 = 117,859,766.73 : x - Step 2: Convert to fraction form
197,216,701.98/272,246,222.12 = 117,859,766.73/x - Step 3: Cross multiply
197,216,701.98x = 272,246,222.12 × 117,859,766.73 - Step 4: Simplify right side
197,216,701.98x = 32,086,876,231,597,668 - Step 5: Solve for x
x = 32,086,876,231,597,668/197,216,701.98 - Step 6: Final answer
x = 162,698,574.26
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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.