Finding the Fourth Proportional to 128,133,166.08, 192,269,719.30 and 54,345,468.70
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Solution
The fourth proportional to 128,133,166.08, 192,269,719.30 and 54,345,468.70 is: 81,547,879.69
Step by Step Solution
- Step 1: Write the proportion equation
128,133,166.08 : 192,269,719.30 = 54,345,468.70 : x - Step 2: Convert to fraction form
128,133,166.08/192,269,719.30 = 54,345,468.70/x - Step 3: Cross multiply
128,133,166.08x = 192,269,719.30 × 54,345,468.70 - Step 4: Simplify right side
128,133,166.08x = 10,448,988,012,175,938 - Step 5: Solve for x
x = 10,448,988,012,175,938/128,133,166.08 - Step 6: Final answer
x = 81,547,879.69
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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.