Finding the Fourth Proportional to 7,689,832.80, 11,535,895.97 and 2,831,765.49
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Solution
The fourth proportional to 7,689,832.80, 11,535,895.97 and 2,831,765.49 is: 4,248,070.53
Step by Step Solution
- Step 1: Write the proportion equation
7,689,832.80 : 11,535,895.97 = 2,831,765.49 : x - Step 2: Convert to fraction form
7,689,832.80/11,535,895.97 = 2,831,765.49/x - Step 3: Cross multiply
7,689,832.80x = 11,535,895.97 × 2,831,765.49 - Step 4: Simplify right side
7,689,832.80x = 32,666,952,089,917.25 - Step 5: Solve for x
x = 32,666,952,089,917.25/7,689,832.80 - Step 6: Final answer
x = 4,248,070.53
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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.