Finding the Fourth Proportional to 140,125,639.80, 210,188,459.70 and 140,125,639.80
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Solution
The fourth proportional to 140,125,639.80, 210,188,459.70 and 140,125,639.80 is: 210,188,459.70
Step by Step Solution
- Step 1: Write the proportion equation
140,125,639.80 : 210,188,459.70 = 140,125,639.80 : x - Step 2: Convert to fraction form
140,125,639.80/210,188,459.70 = 140,125,639.80/x - Step 3: Cross multiply
140,125,639.80x = 210,188,459.70 × 140,125,639.80 - Step 4: Simplify right side
140,125,639.80x = 29,452,792,394,039,016 - Step 5: Solve for x
x = 29,452,792,394,039,016/140,125,639.80 - Step 6: Final answer
x = 210,188,459.70
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1.5x scale
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.