Finding the Fourth Proportional to 18,897,727.20, 28,293,446.70 and 16,984,539.60
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Solution
The fourth proportional to 18,897,727.20, 28,293,446.70 and 16,984,539.60 is: 25,429,045.56
Step by Step Solution
- Step 1: Write the proportion equation
18,897,727.20 : 28,293,446.70 = 16,984,539.60 : x - Step 2: Convert to fraction form
18,897,727.20/28,293,446.70 = 16,984,539.60/x - Step 3: Cross multiply
18,897,727.20x = 28,293,446.70 × 16,984,539.60 - Step 4: Simplify right side
18,897,727.20x = 480,551,165,896,639.38 - Step 5: Solve for x
x = 480,551,165,896,639.38/18,897,727.20 - Step 6: Final answer
x = 25,429,045.56
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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.