Finding the Fourth Proportional to 1,129,540,502.80, 1,694,310,754.20 and 785,166,734.80
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Solution
The fourth proportional to 1,129,540,502.80, 1,694,310,754.20 and 785,166,734.80 is: 1,177,750,102.20
Step by Step Solution
- Step 1: Write the proportion equation
1,129,540,502.80 : 1,694,310,754.20 = 785,166,734.80 : x - Step 2: Convert to fraction form
1,129,540,502.80/1,694,310,754.20 = 785,166,734.80/x - Step 3: Cross multiply
1,129,540,502.80x = 1,694,310,754.20 × 785,166,734.80 - Step 4: Simplify right side
1,129,540,502.80x = 1,330,316,442,611,739,392 - Step 5: Solve for x
x = 1,330,316,442,611,739,392/1,129,540,502.80 - Step 6: Final answer
x = 1,177,750,102.20
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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.