Finding the Fourth Proportional to 5,177,895.94, 7,766,837.18 and 1,391,378.90
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Solution
The fourth proportional to 5,177,895.94, 7,766,837.18 and 1,391,378.90 is: 2,087,066.54
Step by Step Solution
- Step 1: Write the proportion equation
5,177,895.94 : 7,766,837.18 = 1,391,378.90 : x - Step 2: Convert to fraction form
5,177,895.94/7,766,837.18 = 1,391,378.90/x - Step 3: Cross multiply
5,177,895.94x = 7,766,837.18 × 1,391,378.90 - Step 4: Simplify right side
5,177,895.94x = 10,806,613,371,987.50 - Step 5: Solve for x
x = 10,806,613,371,987.50/5,177,895.94 - Step 6: Final answer
x = 2,087,066.54
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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.