Finding the Fourth Proportional to 231,983,622.84, 320,128,793.82 and 127,555,480.92
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Solution
The fourth proportional to 231,983,622.84, 320,128,793.82 and 127,555,480.92 is: 176,021,831.85
Step by Step Solution
- Step 1: Write the proportion equation
231,983,622.84 : 320,128,793.82 = 127,555,480.92 : x - Step 2: Convert to fraction form
231,983,622.84/320,128,793.82 = 127,555,480.92/x - Step 3: Cross multiply
231,983,622.84x = 320,128,793.82 × 127,555,480.92 - Step 4: Simplify right side
231,983,622.84x = 40,834,182,252,049,624 - Step 5: Solve for x
x = 40,834,182,252,049,624/231,983,622.84 - Step 6: Final answer
x = 176,021,831.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.