Finding the Fourth Proportional to 187,728,342.75, 259,046,446.86 and 108,368,971.02
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Solution
The fourth proportional to 187,728,342.75, 259,046,446.86 and 108,368,971.02 is: 149,538,404.70
Step by Step Solution
- Step 1: Write the proportion equation
187,728,342.75 : 259,046,446.86 = 108,368,971.02 : x - Step 2: Convert to fraction form
187,728,342.75/259,046,446.86 = 108,368,971.02/x - Step 3: Cross multiply
187,728,342.75x = 259,046,446.86 × 108,368,971.02 - Step 4: Simplify right side
187,728,342.75x = 28,072,596,892,605,312 - Step 5: Solve for x
x = 28,072,596,892,605,312/187,728,342.75 - Step 6: Final answer
x = 149,538,404.70
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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.