Finding the Fourth Proportional to 1,377,010,214.40, 2,062,728,403.20 and 857,847,129.60
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Solution
The fourth proportional to 1,377,010,214.40, 2,062,728,403.20 and 857,847,129.60 is: 1,285,034,505.43
Step by Step Solution
- Step 1: Write the proportion equation
1,377,010,214.40 : 2,062,728,403.20 = 857,847,129.60 : x - Step 2: Convert to fraction form
1,377,010,214.40/2,062,728,403.20 = 857,847,129.60/x - Step 3: Cross multiply
1,377,010,214.40x = 2,062,728,403.20 × 857,847,129.60 - Step 4: Simplify right side
1,377,010,214.40x = 1,769,505,639,829,511,424 - Step 5: Solve for x
x = 1,769,505,639,829,511,424/1,377,010,214.40 - Step 6: Final answer
x = 1,285,034,505.43
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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.