Finding the Fourth Proportional to 1,176,194,291.20, 1,764,291,436.80 and 849,676,940.80
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Solution
The fourth proportional to 1,176,194,291.20, 1,764,291,436.80 and 849,676,940.80 is: 1,274,515,411.20
Step by Step Solution
- Step 1: Write the proportion equation
1,176,194,291.20 : 1,764,291,436.80 = 849,676,940.80 : x - Step 2: Convert to fraction form
1,176,194,291.20/1,764,291,436.80 = 849,676,940.80/x - Step 3: Cross multiply
1,176,194,291.20x = 1,764,291,436.80 × 849,676,940.80 - Step 4: Simplify right side
1,176,194,291.20x = 1,499,077,750,699,860,480 - Step 5: Solve for x
x = 1,499,077,750,699,860,480/1,176,194,291.20 - Step 6: Final answer
x = 1,274,515,411.20
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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.