Finding the Fourth Proportional to 18,485,639.52, 27,742,079.76 and 8,770,287.84
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Solution
The fourth proportional to 18,485,639.52, 27,742,079.76 and 8,770,287.84 is: 13,161,893.83
Step by Step Solution
- Step 1: Write the proportion equation
18,485,639.52 : 27,742,079.76 = 8,770,287.84 : x - Step 2: Convert to fraction form
18,485,639.52/27,742,079.76 = 8,770,287.84/x - Step 3: Cross multiply
18,485,639.52x = 27,742,079.76 × 8,770,287.84 - Step 4: Simplify right side
18,485,639.52x = 243,306,024,775,438.12 - Step 5: Solve for x
x = 243,306,024,775,438.12/18,485,639.52 - Step 6: Final answer
x = 13,161,893.83
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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.