Finding the Fourth Proportional to 8,161,890,436.80, 12,242,835,655.20 and 4,029,405,220.80
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Solution
The fourth proportional to 8,161,890,436.80, 12,242,835,655.20 and 4,029,405,220.80 is: 6,044,107,831.20
Step by Step Solution
- Step 1: Write the proportion equation
8,161,890,436.80 : 12,242,835,655.20 = 4,029,405,220.80 : x - Step 2: Convert to fraction form
8,161,890,436.80/12,242,835,655.20 = 4,029,405,220.80/x - Step 3: Cross multiply
8,161,890,436.80x = 12,242,835,655.20 × 4,029,405,220.80 - Step 4: Simplify right side
8,161,890,436.80x = 49,331,345,906,459,271,168 - Step 5: Solve for x
x = 49,331,345,906,459,271,168/8,161,890,436.80 - Step 6: Final answer
x = 6,044,107,831.20
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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.