Finding the Fourth Proportional to 124,756,738.80, 187,107,114.60 and 81,926,530.80
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Solution
The fourth proportional to 124,756,738.80, 187,107,114.60 and 81,926,530.80 is: 122,871,413.08
Step by Step Solution
- Step 1: Write the proportion equation
124,756,738.80 : 187,107,114.60 = 81,926,530.80 : x - Step 2: Convert to fraction form
124,756,738.80/187,107,114.60 = 81,926,530.80/x - Step 3: Cross multiply
124,756,738.80x = 187,107,114.60 × 81,926,530.80 - Step 4: Simplify right side
124,756,738.80x = 15,329,036,787,176,028 - Step 5: Solve for x
x = 15,329,036,787,176,028/124,756,738.80 - Step 6: Final answer
x = 122,871,413.08
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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.