Finding the Fourth Proportional to 87,744,140.05, 121,085,434.50 and 48,585,075.79
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Solution
The fourth proportional to 87,744,140.05, 121,085,434.50 and 48,585,075.79 is: 67,046,585.78
Step by Step Solution
- Step 1: Write the proportion equation
87,744,140.05 : 121,085,434.50 = 48,585,075.79 : x - Step 2: Convert to fraction form
87,744,140.05/121,085,434.50 = 48,585,075.79/x - Step 3: Cross multiply
87,744,140.05x = 121,085,434.50 × 48,585,075.79 - Step 4: Simplify right side
87,744,140.05x = 5,882,945,012,247,581 - Step 5: Solve for x
x = 5,882,945,012,247,581/87,744,140.05 - Step 6: Final answer
x = 67,046,585.78
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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.