Finding the Fourth Proportional to 71,291,143.10, 98,379,231.98 and 40,350,648.08
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Solution
The fourth proportional to 71,291,143.10, 98,379,231.98 and 40,350,648.08 is: 55,682,453.60
Step by Step Solution
- Step 1: Write the proportion equation
71,291,143.10 : 98,379,231.98 = 40,350,648.08 : x - Step 2: Convert to fraction form
71,291,143.10/98,379,231.98 = 40,350,648.08/x - Step 3: Cross multiply
71,291,143.10x = 98,379,231.98 × 40,350,648.08 - Step 4: Simplify right side
71,291,143.10x = 3,969,665,767,312,012.50 - Step 5: Solve for x
x = 3,969,665,767,312,012.50/71,291,143.10 - Step 6: Final answer
x = 55,682,453.60
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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.