Finding the Fourth Proportional to 13,459,201.21, 18,573,603.18 and 7,347,629.71
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Solution
The fourth proportional to 13,459,201.21, 18,573,603.18 and 7,347,629.71 is: 10,139,677.41
Step by Step Solution
- Step 1: Write the proportion equation
13,459,201.21 : 18,573,603.18 = 7,347,629.71 : x - Step 2: Convert to fraction form
13,459,201.21/18,573,603.18 = 7,347,629.71/x - Step 3: Cross multiply
13,459,201.21x = 18,573,603.18 × 7,347,629.71 - Step 4: Simplify right side
13,459,201.21x = 136,471,958,542,781.86 - Step 5: Solve for x
x = 136,471,958,542,781.86/13,459,201.21 - Step 6: Final answer
x = 10,139,677.41
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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.