Finding the Fourth Proportional to 19,904,720,021.22, 27,468,327,933.63 and 10,872,474,672.18
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Solution
The fourth proportional to 19,904,720,021.22, 27,468,327,933.63 and 10,872,474,672.18 is: 15,003,913,615.82
Step by Step Solution
- Step 1: Write the proportion equation
19,904,720,021.22 : 27,468,327,933.63 = 10,872,474,672.18 : x - Step 2: Convert to fraction form
19,904,720,021.22/27,468,327,933.63 = 10,872,474,672.18/x - Step 3: Cross multiply
19,904,720,021.22x = 27,468,327,933.63 × 10,872,474,672.18 - Step 4: Simplify right side
19,904,720,021.22x = 298,648,699,745,526,611,968 - Step 5: Solve for x
x = 298,648,699,745,526,611,968/19,904,720,021.22 - Step 6: Final answer
x = 15,003,913,615.82
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1.5x scale
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.