Finding the Fourth Proportional to 124,756,816.80, 187,107,231.60 and 81,926,608.80
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Solution
The fourth proportional to 124,756,816.80, 187,107,231.60 and 81,926,608.80 is: 122,871,530.07
Step by Step Solution
- Step 1: Write the proportion equation
124,756,816.80 : 187,107,231.60 = 81,926,608.80 : x - Step 2: Convert to fraction form
124,756,816.80/187,107,231.60 = 81,926,608.80/x - Step 3: Cross multiply
124,756,816.80x = 187,107,231.60 × 81,926,608.80 - Step 4: Simplify right side
124,756,816.80x = 15,329,060,966,944,198 - Step 5: Solve for x
x = 15,329,060,966,944,198/124,756,816.80 - Step 6: Final answer
x = 122,871,530.07
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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.