Finding the Fourth Proportional to 80,882,128.90, 121,323,193.35 and 44,980,336.90
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Solution
The fourth proportional to 80,882,128.90, 121,323,193.35 and 44,980,336.90 is: 67,470,505.35
Step by Step Solution
- Step 1: Write the proportion equation
80,882,128.90 : 121,323,193.35 = 44,980,336.90 : x - Step 2: Convert to fraction form
80,882,128.90/121,323,193.35 = 44,980,336.90/x - Step 3: Cross multiply
80,882,128.90x = 121,323,193.35 × 44,980,336.90 - Step 4: Simplify right side
80,882,128.90x = 5,457,158,110,666,839 - Step 5: Solve for x
x = 5,457,158,110,666,839/80,882,128.90 - Step 6: Final answer
x = 67,470,505.35
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Double scale
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Similar ratio
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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.