Finding the Fourth Proportional to 18,694,740.28, 28,039,305.12 and 5,913,583.96
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Solution
The fourth proportional to 18,694,740.28, 28,039,305.12 and 5,913,583.96 is: 8,869,488.56
Step by Step Solution
- Step 1: Write the proportion equation
18,694,740.28 : 28,039,305.12 = 5,913,583.96 : x - Step 2: Convert to fraction form
18,694,740.28/28,039,305.12 = 5,913,583.96/x - Step 3: Cross multiply
18,694,740.28x = 28,039,305.12 × 5,913,583.96 - Step 4: Simplify right side
18,694,740.28x = 165,812,785,007,177.88 - Step 5: Solve for x
x = 165,812,785,007,177.88/18,694,740.28 - Step 6: Final answer
x = 8,869,488.56
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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.