Finding the Fourth Proportional to 161,208,811.68, 222,468,219.84 and 91,594,284
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Solution
The fourth proportional to 161,208,811.68, 222,468,219.84 and 91,594,284 is: 126,400,145.85
Step by Step Solution
- Step 1: Write the proportion equation
161,208,811.68 : 222,468,219.84 = 91,594,284 : x - Step 2: Convert to fraction form
161,208,811.68/222,468,219.84 = 91,594,284/x - Step 3: Cross multiply
161,208,811.68x = 222,468,219.84 × 91,594,284 - Step 4: Simplify right side
161,208,811.68x = 20,376,817,308,999,396 - Step 5: Solve for x
x = 20,376,817,308,999,396/161,208,811.68 - Step 6: Final answer
x = 126,400,145.85
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1.5x scale
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.