Finding the Fourth Proportional to 217,479,211.80, 326,218,817.70 and 73,872,043.80
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Solution
The fourth proportional to 217,479,211.80, 326,218,817.70 and 73,872,043.80 is: 110,808,065.70
Step by Step Solution
- Step 1: Write the proportion equation
217,479,211.80 : 326,218,817.70 = 73,872,043.80 : x - Step 2: Convert to fraction form
217,479,211.80/326,218,817.70 = 73,872,043.80/x - Step 3: Cross multiply
217,479,211.80x = 326,218,817.70 × 73,872,043.80 - Step 4: Simplify right side
217,479,211.80x = 24,098,450,789,518,612 - Step 5: Solve for x
x = 24,098,450,789,518,612/217,479,211.80 - Step 6: Final answer
x = 110,808,065.70
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1.5x scale
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.