Finding the Fourth Proportional to 21,546,163.70, 32,319,245.55 and 19,562,117.30
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Solution
The fourth proportional to 21,546,163.70, 32,319,245.55 and 19,562,117.30 is: 29,343,175.95
Step by Step Solution
- Step 1: Write the proportion equation
21,546,163.70 : 32,319,245.55 = 19,562,117.30 : x - Step 2: Convert to fraction form
21,546,163.70/32,319,245.55 = 19,562,117.30/x - Step 3: Cross multiply
21,546,163.70x = 32,319,245.55 × 19,562,117.30 - Step 4: Simplify right side
21,546,163.70x = 632,232,872,496,603 - Step 5: Solve for x
x = 632,232,872,496,603/21,546,163.70 - Step 6: Final answer
x = 29,343,175.95
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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.