Finding the Fourth Proportional to 154,248,432.75, 212,866,753.68 and 84,633,795.18
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Solution
The fourth proportional to 154,248,432.75, 212,866,753.68 and 84,633,795.18 is: 116,796,786.26
Step by Step Solution
- Step 1: Write the proportion equation
154,248,432.75 : 212,866,753.68 = 84,633,795.18 : x - Step 2: Convert to fraction form
154,248,432.75/212,866,753.68 = 84,633,795.18/x - Step 3: Cross multiply
154,248,432.75x = 212,866,753.68 × 84,633,795.18 - Step 4: Simplify right side
154,248,432.75x = 18,015,721,231,584,632 - Step 5: Solve for x
x = 18,015,721,231,584,632/154,248,432.75 - Step 6: Final answer
x = 116,796,786.26
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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.