Finding the Fourth Proportional to 13,319,686.26, 19,971,438.84 and 5,222,961.90
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Solution
The fourth proportional to 13,319,686.26, 19,971,438.84 and 5,222,961.90 is: 7,831,270.36
Step by Step Solution
- Step 1: Write the proportion equation
13,319,686.26 : 19,971,438.84 = 5,222,961.90 : x - Step 2: Convert to fraction form
13,319,686.26/19,971,438.84 = 5,222,961.90/x - Step 3: Cross multiply
13,319,686.26x = 19,971,438.84 × 5,222,961.90 - Step 4: Simplify right side
13,319,686.26x = 104,310,064,149,500.20 - Step 5: Solve for x
x = 104,310,064,149,500.20/13,319,686.26 - Step 6: Final answer
x = 7,831,270.36
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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.