Finding the Fourth Proportional to 128,133,167.08, 192,269,720.80 and 54,345,469.70
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Solution
The fourth proportional to 128,133,167.08, 192,269,720.80 and 54,345,469.70 is: 81,547,881.19
Step by Step Solution
- Step 1: Write the proportion equation
128,133,167.08 : 192,269,720.80 = 54,345,469.70 : x - Step 2: Convert to fraction form
128,133,167.08/192,269,720.80 = 54,345,469.70/x - Step 3: Cross multiply
128,133,167.08x = 192,269,720.80 × 54,345,469.70 - Step 4: Simplify right side
128,133,167.08x = 10,448,988,285,963,860 - Step 5: Solve for x
x = 10,448,988,285,963,860/128,133,167.08 - Step 6: Final answer
x = 81,547,881.19
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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.