Finding the Fourth Proportional to 77,201,241.40, 115,805,586.24 and 25,384,696.84
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Solution
The fourth proportional to 77,201,241.40, 115,805,586.24 and 25,384,696.84 is: 38,078,269.80
Step by Step Solution
- Step 1: Write the proportion equation
77,201,241.40 : 115,805,586.24 = 25,384,696.84 : x - Step 2: Convert to fraction form
77,201,241.40/115,805,586.24 = 25,384,696.84/x - Step 3: Cross multiply
77,201,241.40x = 115,805,586.24 × 25,384,696.84 - Step 4: Simplify right side
77,201,241.40x = 2,939,689,699,080,875.50 - Step 5: Solve for x
x = 2,939,689,699,080,875.50/77,201,241.40 - Step 6: Final answer
x = 38,078,269.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.