Finding the Fourth Proportional to 395,137,568, 545,289,843.84 and 221,297,312
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Solution
The fourth proportional to 395,137,568, 545,289,843.84 and 221,297,312 is: 305,390,290.56
Step by Step Solution
- Step 1: Write the proportion equation
395,137,568 : 545,289,843.84 = 221,297,312 : x - Step 2: Convert to fraction form
395,137,568/545,289,843.84 = 221,297,312/x - Step 3: Cross multiply
395,137,568x = 545,289,843.84 × 221,297,312 - Step 4: Simplify right side
395,137,568x = 120,671,176,702,691,760 - Step 5: Solve for x
x = 120,671,176,702,691,760/395,137,568 - Step 6: Final answer
x = 305,390,290.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.