Finding the Fourth Proportional to 143,245,721.35, 214,921,785.90 and 99,503,431.84
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Solution
The fourth proportional to 143,245,721.35, 214,921,785.90 and 99,503,431.84 is: 149,292,105.01
Step by Step Solution
- Step 1: Write the proportion equation
143,245,721.35 : 214,921,785.90 = 99,503,431.84 : x - Step 2: Convert to fraction form
143,245,721.35/214,921,785.90 = 99,503,431.84/x - Step 3: Cross multiply
143,245,721.35x = 214,921,785.90 × 99,503,431.84 - Step 4: Simplify right side
143,245,721.35x = 21,385,455,274,231,724 - Step 5: Solve for x
x = 21,385,455,274,231,724/143,245,721.35 - Step 6: Final answer
x = 149,292,105.01
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.