Finding the Fourth Proportional to 326,602,725.90, 489,337,218.45 and 211,528,034.70
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Solution
The fourth proportional to 326,602,725.90, 489,337,218.45 and 211,528,034.70 is: 316,924,911.88
Step by Step Solution
- Step 1: Write the proportion equation
326,602,725.90 : 489,337,218.45 = 211,528,034.70 : x - Step 2: Convert to fraction form
326,602,725.90/489,337,218.45 = 211,528,034.70/x - Step 3: Cross multiply
326,602,725.90x = 489,337,218.45 × 211,528,034.70 - Step 4: Simplify right side
326,602,725.90x = 103,508,540,124,293,072 - Step 5: Solve for x
x = 103,508,540,124,293,072/326,602,725.90 - Step 6: Final answer
x = 316,924,911.88
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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.