Finding the Fourth Proportional to 316,136,367.20, 436,273,351.68 and 173,079,743.48
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Solution
The fourth proportional to 316,136,367.20, 436,273,351.68 and 173,079,743.48 is: 238,852,873.72
Step by Step Solution
- Step 1: Write the proportion equation
316,136,367.20 : 436,273,351.68 = 173,079,743.48 : x - Step 2: Convert to fraction form
316,136,367.20/436,273,351.68 = 173,079,743.48/x - Step 3: Cross multiply
316,136,367.20x = 436,273,351.68 × 173,079,743.48 - Step 4: Simplify right side
316,136,367.20x = 75,510,079,795,063,488 - Step 5: Solve for x
x = 75,510,079,795,063,488/316,136,367.20 - Step 6: Final answer
x = 238,852,873.72
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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.