Finding the Fourth Proportional to 1,328,492,654.76, 1,992,929,161.50 and 408,446,244.84
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Solution
The fourth proportional to 1,328,492,654.76, 1,992,929,161.50 and 408,446,244.84 is: 612,727,838.07
Step by Step Solution
- Step 1: Write the proportion equation
1,328,492,654.76 : 1,992,929,161.50 = 408,446,244.84 : x - Step 2: Convert to fraction form
1,328,492,654.76/1,992,929,161.50 = 408,446,244.84/x - Step 3: Cross multiply
1,328,492,654.76x = 1,992,929,161.50 × 408,446,244.84 - Step 4: Simplify right side
1,328,492,654.76x = 814,004,432,246,804,864 - Step 5: Solve for x
x = 814,004,432,246,804,864/1,328,492,654.76 - Step 6: Final answer
x = 612,727,838.07
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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.