Finding the Fourth Proportional to 212,749,168.99, 319,220,717.64 and 109,191,097.19
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Solution
The fourth proportional to 212,749,168.99, 319,220,717.64 and 109,191,097.19 is: 163,836,411.54
Step by Step Solution
- Step 1: Write the proportion equation
212,749,168.99 : 319,220,717.64 = 109,191,097.19 : x - Step 2: Convert to fraction form
212,749,168.99/319,220,717.64 = 109,191,097.19/x - Step 3: Cross multiply
212,749,168.99x = 319,220,717.64 × 109,191,097.19 - Step 4: Simplify right side
212,749,168.99x = 34,856,060,404,890,784 - Step 5: Solve for x
x = 34,856,060,404,890,784/212,749,168.99 - Step 6: Final answer
x = 163,836,411.54
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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.