Finding the Fourth Proportional to 112,932,620.12, 169,324,591.50 and 74,476,878.68
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Solution
The fourth proportional to 112,932,620.12, 169,324,591.50 and 74,476,878.68 is: 111,666,293.10
Step by Step Solution
- Step 1: Write the proportion equation
112,932,620.12 : 169,324,591.50 = 74,476,878.68 : x - Step 2: Convert to fraction form
112,932,620.12/169,324,591.50 = 74,476,878.68/x - Step 3: Cross multiply
112,932,620.12x = 169,324,591.50 × 74,476,878.68 - Step 4: Simplify right side
112,932,620.12x = 12,610,767,058,686,060 - Step 5: Solve for x
x = 12,610,767,058,686,060/112,932,620.12 - Step 6: Final answer
x = 111,666,293.10
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.