Finding the Fourth Proportional to 7,769,171.60, 10,728,226.56 and 4,873,539.80
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Solution
The fourth proportional to 7,769,171.60, 10,728,226.56 and 4,873,539.80 is: 6,729,731.54
Step by Step Solution
- Step 1: Write the proportion equation
7,769,171.60 : 10,728,226.56 = 4,873,539.80 : x - Step 2: Convert to fraction form
7,769,171.60/10,728,226.56 = 4,873,539.80/x - Step 3: Cross multiply
7,769,171.60x = 10,728,226.56 × 4,873,539.80 - Step 4: Simplify right side
7,769,171.60x = 52,284,439,123,577.09 - Step 5: Solve for x
x = 52,284,439,123,577.09/7,769,171.60 - Step 6: Final answer
x = 6,729,731.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.