Finding the Fourth Proportional to 145,738,982.49, 201,114,299.01 and 79,658,923.29
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Solution
The fourth proportional to 145,738,982.49, 201,114,299.01 and 79,658,923.29 is: 109,926,309.65
Step by Step Solution
- Step 1: Write the proportion equation
145,738,982.49 : 201,114,299.01 = 79,658,923.29 : x - Step 2: Convert to fraction form
145,738,982.49/201,114,299.01 = 79,658,923.29/x - Step 3: Cross multiply
145,738,982.49x = 201,114,299.01 × 79,658,923.29 - Step 4: Simplify right side
145,738,982.49x = 16,020,548,517,359,714 - Step 5: Solve for x
x = 16,020,548,517,359,714/145,738,982.49 - Step 6: Final answer
x = 109,926,309.65
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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.