Finding the Fourth Proportional to 7,232,716.80, 9,986,457.60 and 6,336,921.60
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Solution
The fourth proportional to 7,232,716.80, 9,986,457.60 and 6,336,921.60 is: 8,749,602.76
Step by Step Solution
- Step 1: Write the proportion equation
7,232,716.80 : 9,986,457.60 = 6,336,921.60 : x - Step 2: Convert to fraction form
7,232,716.80/9,986,457.60 = 6,336,921.60/x - Step 3: Cross multiply
7,232,716.80x = 9,986,457.60 × 6,336,921.60 - Step 4: Simplify right side
7,232,716.80x = 63,283,398,872,924.16 - Step 5: Solve for x
x = 63,283,398,872,924.16/7,232,716.80 - Step 6: Final answer
x = 8,749,602.76
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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.