Finding the Fourth Proportional to 38,848,934.21, 53,611,657.65 and 21,445,238.07
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Solution
The fourth proportional to 38,848,934.21, 53,611,657.65 and 21,445,238.07 is: 29,594,499.44
Step by Step Solution
- Step 1: Write the proportion equation
38,848,934.21 : 53,611,657.65 = 21,445,238.07 : x - Step 2: Convert to fraction form
38,848,934.21/53,611,657.65 = 21,445,238.07/x - Step 3: Cross multiply
38,848,934.21x = 53,611,657.65 × 21,445,238.07 - Step 4: Simplify right side
38,848,934.21x = 1,149,714,761,631,586.75 - Step 5: Solve for x
x = 1,149,714,761,631,586.75/38,848,934.21 - Step 6: Final answer
x = 29,594,499.44
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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.