Finding the Fourth Proportional to 128,133,165.08, 192,269,717.79 and 54,345,467.70
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Solution
The fourth proportional to 128,133,165.08, 192,269,717.79 and 54,345,467.70 is: 81,547,878.19
Step by Step Solution
- Step 1: Write the proportion equation
128,133,165.08 : 192,269,717.79 = 54,345,467.70 : x - Step 2: Convert to fraction form
128,133,165.08/192,269,717.79 = 54,345,467.70/x - Step 3: Cross multiply
128,133,165.08x = 192,269,717.79 × 54,345,467.70 - Step 4: Simplify right side
128,133,165.08x = 10,448,987,738,099,442 - Step 5: Solve for x
x = 10,448,987,738,099,442/128,133,165.08 - Step 6: Final answer
x = 81,547,878.19
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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.