Finding the Fourth Proportional to 1,981,691,685.84, 2,973,696,651.22 and 738,980,680.26
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Solution
The fourth proportional to 1,981,691,685.84, 2,973,696,651.22 and 738,980,680.26 is: 1,108,903,261.75
Step by Step Solution
- Step 1: Write the proportion equation
1,981,691,685.84 : 2,973,696,651.22 = 738,980,680.26 : x - Step 2: Convert to fraction form
1,981,691,685.84/2,973,696,651.22 = 738,980,680.26/x - Step 3: Cross multiply
1,981,691,685.84x = 2,973,696,651.22 × 738,980,680.26 - Step 4: Simplify right side
1,981,691,685.84x = 2,197,504,374,205,439,488 - Step 5: Solve for x
x = 2,197,504,374,205,439,488/1,981,691,685.84 - Step 6: Final answer
x = 1,108,903,261.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.