Finding the Fourth Proportional to 19,907,328,991.20, 29,860,993,486.80 and 6,816,775,135.20
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Solution
The fourth proportional to 19,907,328,991.20, 29,860,993,486.80 and 6,816,775,135.20 is: 10,225,162,702.80
Step by Step Solution
- Step 1: Write the proportion equation
19,907,328,991.20 : 29,860,993,486.80 = 6,816,775,135.20 : x - Step 2: Convert to fraction form
19,907,328,991.20/29,860,993,486.80 = 6,816,775,135.20/x - Step 3: Cross multiply
19,907,328,991.20x = 29,860,993,486.80 × 6,816,775,135.20 - Step 4: Simplify right side
19,907,328,991.20x = 203,555,677,913,187,385,344 - Step 5: Solve for x
x = 203,555,677,913,187,385,344/19,907,328,991.20 - Step 6: Final answer
x = 10,225,162,702.80
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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.