Finding the Fourth Proportional to 1,029,840,836.80, 1,543,566,861.60 and 416,022,059.20
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Solution
The fourth proportional to 1,029,840,836.80, 1,543,566,861.60 and 416,022,059.20 is: 623,550,592.80
Step by Step Solution
- Step 1: Write the proportion equation
1,029,840,836.80 : 1,543,566,861.60 = 416,022,059.20 : x - Step 2: Convert to fraction form
1,029,840,836.80/1,543,566,861.60 = 416,022,059.20/x - Step 3: Cross multiply
1,029,840,836.80x = 1,543,566,861.60 × 416,022,059.20 - Step 4: Simplify right side
1,029,840,836.80x = 642,157,864,275,713,408 - Step 5: Solve for x
x = 642,157,864,275,713,408/1,029,840,836.80 - Step 6: Final answer
x = 623,550,592.80
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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.