Finding the Fourth Proportional to 3,148,374,519.21, 4,344,864,051.24 and 1,861,989,102.12
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Solution
The fourth proportional to 3,148,374,519.21, 4,344,864,051.24 and 1,861,989,102.12 is: 2,569,608,369.09
Step by Step Solution
- Step 1: Write the proportion equation
3,148,374,519.21 : 4,344,864,051.24 = 1,861,989,102.12 : x - Step 2: Convert to fraction form
3,148,374,519.21/4,344,864,051.24 = 1,861,989,102.12/x - Step 3: Cross multiply
3,148,374,519.21x = 4,344,864,051.24 × 1,861,989,102.12 - Step 4: Simplify right side
3,148,374,519.21x = 8,090,089,513,601,831,936 - Step 5: Solve for x
x = 8,090,089,513,601,831,936/3,148,374,519.21 - Step 6: Final answer
x = 2,569,608,369.09
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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.