Finding the Fourth Proportional to 135,448,198.46, 186,915,334.75 and 79,697,229.84
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Solution
The fourth proportional to 135,448,198.46, 186,915,334.75 and 79,697,229.84 is: 109,980,306.59
Step by Step Solution
- Step 1: Write the proportion equation
135,448,198.46 : 186,915,334.75 = 79,697,229.84 : x - Step 2: Convert to fraction form
135,448,198.46/186,915,334.75 = 79,697,229.84/x - Step 3: Cross multiply
135,448,198.46x = 186,915,334.75 × 79,697,229.84 - Step 4: Simplify right side
135,448,198.46x = 14,896,634,393,792,804 - Step 5: Solve for x
x = 14,896,634,393,792,804/135,448,198.46 - Step 6: Final answer
x = 109,980,306.59
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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.