Finding the Fourth Proportional to 89,173,843.80, 133,760,765.70 and 53,342,035.80
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Solution
The fourth proportional to 89,173,843.80, 133,760,765.70 and 53,342,035.80 is: 80,013,053.70
Step by Step Solution
- Step 1: Write the proportion equation
89,173,843.80 : 133,760,765.70 = 53,342,035.80 : x - Step 2: Convert to fraction form
89,173,843.80/133,760,765.70 = 53,342,035.80/x - Step 3: Cross multiply
89,173,843.80x = 133,760,765.70 × 53,342,035.80 - Step 4: Simplify right side
89,173,843.80x = 7,135,071,552,604,812 - Step 5: Solve for x
x = 7,135,071,552,604,812/89,173,843.80 - Step 6: Final answer
x = 80,013,053.70
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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.