Finding the Fourth Proportional to 18,526,807.92, 27,790,276.68 and 13,119,102.48
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Solution
The fourth proportional to 18,526,807.92, 27,790,276.68 and 13,119,102.48 is: 19,678,699.61
Step by Step Solution
- Step 1: Write the proportion equation
18,526,807.92 : 27,790,276.68 = 13,119,102.48 : x - Step 2: Convert to fraction form
18,526,807.92/27,790,276.68 = 13,119,102.48/x - Step 3: Cross multiply
18,526,807.92x = 27,790,276.68 × 13,119,102.48 - Step 4: Simplify right side
18,526,807.92x = 364,583,487,712,474.19 - Step 5: Solve for x
x = 364,583,487,712,474.19/18,526,807.92 - Step 6: Final answer
x = 19,678,699.61
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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.