Finding the Fourth Proportional to 115,640,815.86, 159,584,584.77 and 66,748,204.98
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Solution
The fourth proportional to 115,640,815.86, 159,584,584.77 and 66,748,204.98 is: 92,112,672.30
Step by Step Solution
- Step 1: Write the proportion equation
115,640,815.86 : 159,584,584.77 = 66,748,204.98 : x - Step 2: Convert to fraction form
115,640,815.86/159,584,584.77 = 66,748,204.98/x - Step 3: Cross multiply
115,640,815.86x = 159,584,584.77 × 66,748,204.98 - Step 4: Simplify right side
115,640,815.86x = 10,651,984,575,876,146 - Step 5: Solve for x
x = 10,651,984,575,876,146/115,640,815.86 - Step 6: Final answer
x = 92,112,672.30
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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.