Finding the Fourth Proportional to 1,770,135,311.80, 2,655,202,967.70 and 851,805,263.80
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Solution
The fourth proportional to 1,770,135,311.80, 2,655,202,967.70 and 851,805,263.80 is: 1,277,707,895.70
Step by Step Solution
- Step 1: Write the proportion equation
1,770,135,311.80 : 2,655,202,967.70 = 851,805,263.80 : x - Step 2: Convert to fraction form
1,770,135,311.80/2,655,202,967.70 = 851,805,263.80/x - Step 3: Cross multiply
1,770,135,311.80x = 2,655,202,967.70 × 851,805,263.80 - Step 4: Simplify right side
1,770,135,311.80x = 2,261,715,864,344,241,152 - Step 5: Solve for x
x = 2,261,715,864,344,241,152/1,770,135,311.80 - Step 6: Final answer
x = 1,277,707,895.70
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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.