Finding the Fourth Proportional to 145,449,365.94, 200,724,384.08 and 79,374,121.99
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Solution
The fourth proportional to 145,449,365.94, 200,724,384.08 and 79,374,121.99 is: 109,538,612.60
Step by Step Solution
- Step 1: Write the proportion equation
145,449,365.94 : 200,724,384.08 = 79,374,121.99 : x - Step 2: Convert to fraction form
145,449,365.94/200,724,384.08 = 79,374,121.99/x - Step 3: Cross multiply
145,449,365.94x = 200,724,384.08 × 79,374,121.99 - Step 4: Simplify right side
145,449,365.94x = 15,932,321,748,333,534 - Step 5: Solve for x
x = 15,932,321,748,333,534/145,449,365.94 - Step 6: Final answer
x = 109,538,612.60
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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.