Finding the Fourth Proportional to 5,177,690.84, 7,766,536.03 and 4,918,786.35
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Solution
The fourth proportional to 5,177,690.84, 7,766,536.03 and 4,918,786.35 is: 7,378,179.31
Step by Step Solution
- Step 1: Write the proportion equation
5,177,690.84 : 7,766,536.03 = 4,918,786.35 : x - Step 2: Convert to fraction form
5,177,690.84/7,766,536.03 = 4,918,786.35/x - Step 3: Cross multiply
5,177,690.84x = 7,766,536.03 × 4,918,786.35 - Step 4: Simplify right side
5,177,690.84x = 38,201,931,398,850.22 - Step 5: Solve for x
x = 38,201,931,398,850.22/5,177,690.84 - Step 6: Final answer
x = 7,378,179.31
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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.