Finding the Fourth Proportional to 163,556,234.70, 245,095,203.60 and 139,163,092.80
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Solution
The fourth proportional to 163,556,234.70, 245,095,203.60 and 139,163,092.80 is: 208,541,157.88
Step by Step Solution
- Step 1: Write the proportion equation
163,556,234.70 : 245,095,203.60 = 139,163,092.80 : x - Step 2: Convert to fraction form
163,556,234.70/245,095,203.60 = 139,163,092.80/x - Step 3: Cross multiply
163,556,234.70x = 245,095,203.60 × 139,163,092.80 - Step 4: Simplify right side
163,556,234.70x = 34,108,206,563,421,696 - Step 5: Solve for x
x = 34,108,206,563,421,696/163,556,234.70 - Step 6: Final answer
x = 208,541,157.88
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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.