Finding the Fourth Proportional to 100,072,633.98, 138,029,042.34 and 91,839,283.68
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Solution
The fourth proportional to 100,072,633.98, 138,029,042.34 and 91,839,283.68 is: 126,672,876.20
Step by Step Solution
- Step 1: Write the proportion equation
100,072,633.98 : 138,029,042.34 = 91,839,283.68 : x - Step 2: Convert to fraction form
100,072,633.98/138,029,042.34 = 91,839,283.68/x - Step 3: Cross multiply
100,072,633.98x = 138,029,042.34 × 91,839,283.68 - Step 4: Simplify right side
100,072,633.98x = 12,676,488,375,541,992 - Step 5: Solve for x
x = 12,676,488,375,541,992/100,072,633.98 - Step 6: Final answer
x = 126,672,876.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.