Finding the Fourth Proportional to 115,880,213.57, 159,875,144.69 and 71,811,132.93
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Solution
The fourth proportional to 115,880,213.57, 159,875,144.69 and 71,811,132.93 is: 99,074,854.23
Step by Step Solution
- Step 1: Write the proportion equation
115,880,213.57 : 159,875,144.69 = 71,811,132.93 : x - Step 2: Convert to fraction form
115,880,213.57/159,875,144.69 = 71,811,132.93/x - Step 3: Cross multiply
115,880,213.57x = 159,875,144.69 × 71,811,132.93 - Step 4: Simplify right side
115,880,213.57x = 11,480,815,267,177,520 - Step 5: Solve for x
x = 11,480,815,267,177,520/115,880,213.57 - Step 6: Final answer
x = 99,074,854.23
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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.