Finding the Fourth Proportional to 136,417,129.84, 188,258,172.60 and 74,541,476.08
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Solution
The fourth proportional to 136,417,129.84, 188,258,172.60 and 74,541,476.08 is: 102,868,621.31
Step by Step Solution
- Step 1: Write the proportion equation
136,417,129.84 : 188,258,172.60 = 74,541,476.08 : x - Step 2: Convert to fraction form
136,417,129.84/188,258,172.60 = 74,541,476.08/x - Step 3: Cross multiply
136,417,129.84x = 188,258,172.60 × 74,541,476.08 - Step 4: Simplify right side
136,417,129.84x = 14,033,042,069,727,410 - Step 5: Solve for x
x = 14,033,042,069,727,410/136,417,129.84 - Step 6: Final answer
x = 102,868,621.31
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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.