Finding the Fourth Proportional to 889,085,948.60, 1,332,916,791.96 and 422,513,234.84
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Solution
The fourth proportional to 889,085,948.60, 1,332,916,791.96 and 422,513,234.84 is: 633,431,431.94
Step by Step Solution
- Step 1: Write the proportion equation
889,085,948.60 : 1,332,916,791.96 = 422,513,234.84 : x - Step 2: Convert to fraction form
889,085,948.60/1,332,916,791.96 = 422,513,234.84/x - Step 3: Cross multiply
889,085,948.60x = 1,332,916,791.96 × 422,513,234.84 - Step 4: Simplify right side
889,085,948.60x = 563,174,985,543,574,912 - Step 5: Solve for x
x = 563,174,985,543,574,912/889,085,948.60 - Step 6: Final answer
x = 633,431,431.94
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1.5x scale
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.