Finding the Fourth Proportional to 89,173,831.80, 133,760,747.70 and 53,342,023.80
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Solution
The fourth proportional to 89,173,831.80, 133,760,747.70 and 53,342,023.80 is: 80,013,035.70
Step by Step Solution
- Step 1: Write the proportion equation
89,173,831.80 : 133,760,747.70 = 53,342,023.80 : x - Step 2: Convert to fraction form
89,173,831.80/133,760,747.70 = 53,342,023.80/x - Step 3: Cross multiply
89,173,831.80x = 133,760,747.70 × 53,342,023.80 - Step 4: Simplify right side
89,173,831.80x = 7,135,068,987,319,195 - Step 5: Solve for x
x = 7,135,068,987,319,195/89,173,831.80 - Step 6: Final answer
x = 80,013,035.70
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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.