Finding the Fourth Proportional to 316,136,044.26, 436,272,906.12 and 173,079,420.78
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Solution
The fourth proportional to 316,136,044.26, 436,272,906.12 and 173,079,420.78 is: 238,852,428.45
Step by Step Solution
- Step 1: Write the proportion equation
316,136,044.26 : 436,272,906.12 = 173,079,420.78 : x - Step 2: Convert to fraction form
316,136,044.26/436,272,906.12 = 173,079,420.78/x - Step 3: Cross multiply
316,136,044.26x = 436,272,906.12 × 173,079,420.78 - Step 4: Simplify right side
316,136,044.26x = 75,509,861,893,256,912 - Step 5: Solve for x
x = 75,509,861,893,256,912/316,136,044.26 - Step 6: Final answer
x = 238,852,428.45
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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.