Finding the Fourth Proportional to 157,414,362.97, 217,232,575.46 and 86,849,969.62
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Solution
The fourth proportional to 157,414,362.97, 217,232,575.46 and 86,849,969.62 is: 119,853,374.39
Step by Step Solution
- Step 1: Write the proportion equation
157,414,362.97 : 217,232,575.46 = 86,849,969.62 : x - Step 2: Convert to fraction form
157,414,362.97/217,232,575.46 = 86,849,969.62/x - Step 3: Cross multiply
157,414,362.97x = 217,232,575.46 × 86,849,969.62 - Step 4: Simplify right side
157,414,362.97x = 18,866,642,578,523,716 - Step 5: Solve for x
x = 18,866,642,578,523,716/157,414,362.97 - Step 6: Final answer
x = 119,853,374.39
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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.