Finding the Fourth Proportional to 163,902,182.70, 245,853,274.05 and 82,272,845.10
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Solution
The fourth proportional to 163,902,182.70, 245,853,274.05 and 82,272,845.10 is: 123,409,267.65
Step by Step Solution
- Step 1: Write the proportion equation
163,902,182.70 : 245,853,274.05 = 82,272,845.10 : x - Step 2: Convert to fraction form
163,902,182.70/245,853,274.05 = 82,272,845.10/x - Step 3: Cross multiply
163,902,182.70x = 245,853,274.05 × 82,272,845.10 - Step 4: Simplify right side
163,902,182.70x = 20,227,048,333,243,500 - Step 5: Solve for x
x = 20,227,048,333,243,500/163,902,182.70 - Step 6: Final answer
x = 123,409,267.65
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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.