Finding the Fourth Proportional to 138,450,902.40, 191,121,076.92 and 86,265,721.44
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Solution
The fourth proportional to 138,450,902.40, 191,121,076.92 and 86,265,721.44 is: 119,083,352.27
Step by Step Solution
- Step 1: Write the proportion equation
138,450,902.40 : 191,121,076.92 = 86,265,721.44 : x - Step 2: Convert to fraction form
138,450,902.40/191,121,076.92 = 86,265,721.44/x - Step 3: Cross multiply
138,450,902.40x = 191,121,076.92 × 86,265,721.44 - Step 4: Simplify right side
138,450,902.40x = 16,487,197,582,893,532 - Step 5: Solve for x
x = 16,487,197,582,893,532/138,450,902.40 - Step 6: Final answer
x = 119,083,352.27
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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.