Finding the Fourth Proportional to 208,119,277.42, 312,198,105.90 and 68,060,461.21
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Solution
The fourth proportional to 208,119,277.42, 312,198,105.90 and 68,060,461.21 is: 102,096,967.37
Step by Step Solution
- Step 1: Write the proportion equation
208,119,277.42 : 312,198,105.90 = 68,060,461.21 : x - Step 2: Convert to fraction form
208,119,277.42/312,198,105.90 = 68,060,461.21/x - Step 3: Cross multiply
208,119,277.42x = 312,198,105.90 × 68,060,461.21 - Step 4: Simplify right side
208,119,277.42x = 21,248,347,076,442,420 - Step 5: Solve for x
x = 21,248,347,076,442,420/208,119,277.42 - Step 6: Final answer
x = 102,096,967.37
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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.