Finding the Fourth Proportional to 13,078,887.21, 19,605,604.14 and 6,253,689.96
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Solution
The fourth proportional to 13,078,887.21, 19,605,604.14 and 6,253,689.96 is: 9,374,449.66
Step by Step Solution
- Step 1: Write the proportion equation
13,078,887.21 : 19,605,604.14 = 6,253,689.96 : x - Step 2: Convert to fraction form
13,078,887.21/19,605,604.14 = 6,253,689.96/x - Step 3: Cross multiply
13,078,887.21x = 19,605,604.14 × 6,253,689.96 - Step 4: Simplify right side
13,078,887.21x = 122,607,369,770,052.44 - Step 5: Solve for x
x = 122,607,369,770,052.44/13,078,887.21 - Step 6: Final answer
x = 9,374,449.66
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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.