Finding the Fourth Proportional to 154,878,878.16, 213,745,346.73 and 88,805,523.96
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Solution
The fourth proportional to 154,878,878.16, 213,745,346.73 and 88,805,523.96 is: 122,558,787.46
Step by Step Solution
- Step 1: Write the proportion equation
154,878,878.16 : 213,745,346.73 = 88,805,523.96 : x - Step 2: Convert to fraction form
154,878,878.16/213,745,346.73 = 88,805,523.96/x - Step 3: Cross multiply
154,878,878.16x = 213,745,346.73 × 88,805,523.96 - Step 4: Simplify right side
154,878,878.16x = 18,981,767,510,369,520 - Step 5: Solve for x
x = 18,981,767,510,369,520/154,878,878.16 - Step 6: Final answer
x = 122,558,787.46
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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.