Finding the Fourth Proportional to 139,795,670.51, 192,875,267.81 and 81,046,608.68
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Solution
The fourth proportional to 139,795,670.51, 192,875,267.81 and 81,046,608.68 is: 111,819,531.31
Step by Step Solution
- Step 1: Write the proportion equation
139,795,670.51 : 192,875,267.81 = 81,046,608.68 : x - Step 2: Convert to fraction form
139,795,670.51/192,875,267.81 = 81,046,608.68/x - Step 3: Cross multiply
139,795,670.51x = 192,875,267.81 × 81,046,608.68 - Step 4: Simplify right side
139,795,670.51x = 15,631,886,354,932,076 - Step 5: Solve for x
x = 15,631,886,354,932,076/139,795,670.51 - Step 6: Final answer
x = 111,819,531.31
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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.