Finding the Fourth Proportional to 76,683,056.97, 105,831,699.35 and 43,193,638.29
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Solution
The fourth proportional to 76,683,056.97, 105,831,699.35 and 43,193,638.29 is: 59,612,335.79
Step by Step Solution
- Step 1: Write the proportion equation
76,683,056.97 : 105,831,699.35 = 43,193,638.29 : x - Step 2: Convert to fraction form
76,683,056.97/105,831,699.35 = 43,193,638.29/x - Step 3: Cross multiply
76,683,056.97x = 105,831,699.35 × 43,193,638.29 - Step 4: Simplify right side
76,683,056.97x = 4,571,256,141,123,960 - Step 5: Solve for x
x = 4,571,256,141,123,960/76,683,056.97 - Step 6: Final answer
x = 59,612,335.79
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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.