Finding the Fourth Proportional to 18,183,769.20, 27,275,653.80 and 8,617,831.20
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Solution
The fourth proportional to 18,183,769.20, 27,275,653.80 and 8,617,831.20 is: 12,926,746.80
Step by Step Solution
- Step 1: Write the proportion equation
18,183,769.20 : 27,275,653.80 = 8,617,831.20 : x - Step 2: Convert to fraction form
18,183,769.20/27,275,653.80 = 8,617,831.20/x - Step 3: Cross multiply
18,183,769.20x = 27,275,653.80 × 8,617,831.20 - Step 4: Simplify right side
18,183,769.20x = 235,056,980,318,038.53 - Step 5: Solve for x
x = 235,056,980,318,038.53/18,183,769.20 - Step 6: Final answer
x = 12,926,746.80
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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.