Finding the Fourth Proportional to 68,385,647.20, 102,415,634.88 and 39,571,057.12
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Solution
The fourth proportional to 68,385,647.20, 102,415,634.88 and 39,571,057.12 is: 59,262,361.38
Step by Step Solution
- Step 1: Write the proportion equation
68,385,647.20 : 102,415,634.88 = 39,571,057.12 : x - Step 2: Convert to fraction form
68,385,647.20/102,415,634.88 = 39,571,057.12/x - Step 3: Cross multiply
68,385,647.20x = 102,415,634.88 × 39,571,057.12 - Step 4: Simplify right side
68,385,647.20x = 4,052,694,937,817,544 - Step 5: Solve for x
x = 4,052,694,937,817,544/68,385,647.20 - Step 6: Final answer
x = 59,262,361.38
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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.