Finding the Fourth Proportional to 85,745,997.33, 128,553,910.87 and 44,202,106.19
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Solution
The fourth proportional to 85,745,997.33, 128,553,910.87 and 44,202,106.19 is: 66,269,607.86
Step by Step Solution
- Step 1: Write the proportion equation
85,745,997.33 : 128,553,910.87 = 44,202,106.19 : x - Step 2: Convert to fraction form
85,745,997.33/128,553,910.87 = 44,202,106.19/x - Step 3: Cross multiply
85,745,997.33x = 128,553,910.87 × 44,202,106.19 - Step 4: Simplify right side
85,745,997.33x = 5,682,353,618,772,766 - Step 5: Solve for x
x = 5,682,353,618,772,766/85,745,997.33 - Step 6: Final answer
x = 66,269,607.86
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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.