Finding the Fourth Proportional to 326,602,743.40, 489,337,244.70 and 211,528,052.20
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Solution
The fourth proportional to 326,602,743.40, 489,337,244.70 and 211,528,052.20 is: 316,924,938.12
Step by Step Solution
- Step 1: Write the proportion equation
326,602,743.40 : 489,337,244.70 = 211,528,052.20 : x - Step 2: Convert to fraction form
326,602,743.40/489,337,244.70 = 211,528,052.20/x - Step 3: Cross multiply
326,602,743.40x = 489,337,244.70 × 211,528,052.20 - Step 4: Simplify right side
326,602,743.40x = 103,508,554,240,305,760 - Step 5: Solve for x
x = 103,508,554,240,305,760/326,602,743.40 - Step 6: Final answer
x = 316,924,938.12
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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.