Finding the Fourth Proportional to 1,304,331,657.80, 1,956,497,486.70 and 891,083,136.20
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Solution
The fourth proportional to 1,304,331,657.80, 1,956,497,486.70 and 891,083,136.20 is: 1,336,624,704.30
Step by Step Solution
- Step 1: Write the proportion equation
1,304,331,657.80 : 1,956,497,486.70 = 891,083,136.20 : x - Step 2: Convert to fraction form
1,304,331,657.80/1,956,497,486.70 = 891,083,136.20/x - Step 3: Cross multiply
1,304,331,657.80x = 1,956,497,486.70 × 891,083,136.20 - Step 4: Simplify right side
1,304,331,657.80x = 1,743,401,916,416,054,016 - Step 5: Solve for x
x = 1,743,401,916,416,054,016/1,304,331,657.80 - Step 6: Final answer
x = 1,336,624,704.30
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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.