Finding the Fourth Proportional to 5,177,747.60, 7,766,617.30 and 1,391,230.48
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Solution
The fourth proportional to 5,177,747.60, 7,766,617.30 and 1,391,230.48 is: 2,086,844.61
Step by Step Solution
- Step 1: Write the proportion equation
5,177,747.60 : 7,766,617.30 = 1,391,230.48 : x - Step 2: Convert to fraction form
5,177,747.60/7,766,617.30 = 1,391,230.48/x - Step 3: Cross multiply
5,177,747.60x = 7,766,617.30 × 1,391,230.48 - Step 4: Simplify right side
5,177,747.60x = 10,805,154,671,944.14 - Step 5: Solve for x
x = 10,805,154,671,944.14/5,177,747.60 - Step 6: Final answer
x = 2,086,844.61
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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.