Finding the Fourth Proportional to 138,531,135.24, 191,173,190.58 and 76,654,081.80
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Solution
The fourth proportional to 138,531,135.24, 191,173,190.58 and 76,654,081.80 is: 105,782,756.80
Step by Step Solution
- Step 1: Write the proportion equation
138,531,135.24 : 191,173,190.58 = 76,654,081.80 : x - Step 2: Convert to fraction form
138,531,135.24/191,173,190.58 = 76,654,081.80/x - Step 3: Cross multiply
138,531,135.24x = 191,173,190.58 × 76,654,081.80 - Step 4: Simplify right side
138,531,135.24x = 14,654,205,388,686,310 - Step 5: Solve for x
x = 14,654,205,388,686,310/138,531,135.24 - Step 6: Final answer
x = 105,782,756.80
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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.