Finding the Fourth Proportional to 326,243,644.92, 489,366,786.87 and 132,158,730.87
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Solution
The fourth proportional to 326,243,644.92, 489,366,786.87 and 132,158,730.87 is: 198,238,630.82
Step by Step Solution
- Step 1: Write the proportion equation
326,243,644.92 : 489,366,786.87 = 132,158,730.87 : x - Step 2: Convert to fraction form
326,243,644.92/489,366,786.87 = 132,158,730.87/x - Step 3: Cross multiply
326,243,644.92x = 489,366,786.87 × 132,158,730.87 - Step 4: Simplify right side
326,243,644.92x = 64,674,093,482,668,984 - Step 5: Solve for x
x = 64,674,093,482,668,984/326,243,644.92 - Step 6: Final answer
x = 198,238,630.82
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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.