Finding the Fourth Proportional to 81,886,463.60, 122,788,623.53 and 27,279,851.09
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Solution
The fourth proportional to 81,886,463.60, 122,788,623.53 and 27,279,851.09 is: 40,906,093.85
Step by Step Solution
- Step 1: Write the proportion equation
81,886,463.60 : 122,788,623.53 = 27,279,851.09 : x - Step 2: Convert to fraction form
81,886,463.60/122,788,623.53 = 27,279,851.09/x - Step 3: Cross multiply
81,886,463.60x = 122,788,623.53 × 27,279,851.09 - Step 4: Simplify right side
81,886,463.60x = 3,349,655,364,898,726.50 - Step 5: Solve for x
x = 3,349,655,364,898,726.50/81,886,463.60 - Step 6: Final answer
x = 40,906,093.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.