Finding the Fourth Proportional to 51,686,812.05, 71,328,278.99 and 28,482,769.41
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Solution
The fourth proportional to 51,686,812.05, 71,328,278.99 and 28,482,769.41 is: 39,306,485.39
Step by Step Solution
- Step 1: Write the proportion equation
51,686,812.05 : 71,328,278.99 = 28,482,769.41 : x - Step 2: Convert to fraction form
51,686,812.05/71,328,278.99 = 28,482,769.41/x - Step 3: Cross multiply
51,686,812.05x = 71,328,278.99 × 28,482,769.41 - Step 4: Simplify right side
51,686,812.05x = 2,031,626,922,741,903.75 - Step 5: Solve for x
x = 2,031,626,922,741,903.75/51,686,812.05 - Step 6: Final answer
x = 39,306,485.39
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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.