Finding the Fourth Proportional to 11,284,903.55, 15,577,933.84 and 7,618,785.64
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Solution
The fourth proportional to 11,284,903.55, 15,577,933.84 and 7,618,785.64 is: 10,517,142.48
Step by Step Solution
- Step 1: Write the proportion equation
11,284,903.55 : 15,577,933.84 = 7,618,785.64 : x - Step 2: Convert to fraction form
11,284,903.55/15,577,933.84 = 7,618,785.64/x - Step 3: Cross multiply
11,284,903.55x = 15,577,933.84 × 7,618,785.64 - Step 4: Simplify right side
11,284,903.55x = 118,684,938,583,070.27 - Step 5: Solve for x
x = 118,684,938,583,070.27/11,284,903.55 - Step 6: Final answer
x = 10,517,142.48
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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.