Finding the Fourth Proportional to 218,508,891.40, 327,763,337.10 and 149,634,137.80
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Solution
The fourth proportional to 218,508,891.40, 327,763,337.10 and 149,634,137.80 is: 224,451,206.70
Step by Step Solution
- Step 1: Write the proportion equation
218,508,891.40 : 327,763,337.10 = 149,634,137.80 : x - Step 2: Convert to fraction form
218,508,891.40/327,763,337.10 = 149,634,137.80/x - Step 3: Cross multiply
218,508,891.40x = 327,763,337.10 × 149,634,137.80 - Step 4: Simplify right side
218,508,891.40x = 49,044,584,349,409,256 - Step 5: Solve for x
x = 49,044,584,349,409,256/218,508,891.40 - Step 6: Final answer
x = 224,451,206.70
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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.