Finding the Fourth Proportional to 85,698,272.21, 128,530,221.57 and 41,960,185.84
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Solution
The fourth proportional to 85,698,272.21, 128,530,221.57 and 41,960,185.84 is: 62,931,863.66
Step by Step Solution
- Step 1: Write the proportion equation
85,698,272.21 : 128,530,221.57 = 41,960,185.84 : x - Step 2: Convert to fraction form
85,698,272.21/128,530,221.57 = 41,960,185.84/x - Step 3: Cross multiply
85,698,272.21x = 128,530,221.57 × 41,960,185.84 - Step 4: Simplify right side
85,698,272.21x = 5,393,151,982,812,251 - Step 5: Solve for x
x = 5,393,151,982,812,251/85,698,272.21 - Step 6: Final answer
x = 62,931,863.66
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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.