Finding the Fourth Proportional to 163,318,439.12, 225,379,322.16 and 89,979,581.12
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Solution
The fourth proportional to 163,318,439.12, 225,379,322.16 and 89,979,581.12 is: 124,171,753.72
Step by Step Solution
- Step 1: Write the proportion equation
163,318,439.12 : 225,379,322.16 = 89,979,581.12 : x - Step 2: Convert to fraction form
163,318,439.12/225,379,322.16 = 89,979,581.12/x - Step 3: Cross multiply
163,318,439.12x = 225,379,322.16 × 89,979,581.12 - Step 4: Simplify right side
163,318,439.12x = 20,279,537,001,066,336 - Step 5: Solve for x
x = 20,279,537,001,066,336/163,318,439.12 - Step 6: Final answer
x = 124,171,753.72
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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.