Finding the Fourth Proportional to 354,347,868.48, 489,001,410.36 and 197,721,576.96
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Solution
The fourth proportional to 354,347,868.48, 489,001,410.36 and 197,721,576.96 is: 272,856,530.52
Step by Step Solution
- Step 1: Write the proportion equation
354,347,868.48 : 489,001,410.36 = 197,721,576.96 : x - Step 2: Convert to fraction form
354,347,868.48/489,001,410.36 = 197,721,576.96/x - Step 3: Cross multiply
354,347,868.48x = 489,001,410.36 × 197,721,576.96 - Step 4: Simplify right side
354,347,868.48x = 96,686,129,992,043,296 - Step 5: Solve for x
x = 96,686,129,992,043,296/354,347,868.48 - Step 6: Final answer
x = 272,856,530.52
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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.