Finding the Fourth Proportional to 1,131,592,866,910.80, 1,561,590,212,306.50 and 617,758,661,358.70
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Solution
The fourth proportional to 1,131,592,866,910.80, 1,561,590,212,306.50 and 617,758,661,358.70 is: 852,502,615,873.55
Step by Step Solution
- Step 1: Write the proportion equation
1,131,592,866,910.80 : 1,561,590,212,306.50 = 617,758,661,358.70 : x - Step 2: Convert to fraction form
1,131,592,866,910.80/1,561,590,212,306.50 = 617,758,661,358.70/x - Step 3: Cross multiply
1,131,592,866,910.80x = 1,561,590,212,306.50 × 617,758,661,358.70 - Step 4: Simplify right side
1,131,592,866,910.80x = 964,685,879,145,311,517,016,064 - Step 5: Solve for x
x = 964,685,879,145,311,517,016,064/1,131,592,866,910.80 - Step 6: Final answer
x = 852,502,615,873.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.