Finding the Fourth Proportional to 11,221,125.80, 16,831,688.70 and 3,648,338.60
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Solution
The fourth proportional to 11,221,125.80, 16,831,688.70 and 3,648,338.60 is: 5,472,507.90
Step by Step Solution
- Step 1: Write the proportion equation
11,221,125.80 : 16,831,688.70 = 3,648,338.60 : x - Step 2: Convert to fraction form
11,221,125.80/16,831,688.70 = 3,648,338.60/x - Step 3: Cross multiply
11,221,125.80x = 16,831,688.70 × 3,648,338.60 - Step 4: Simplify right side
11,221,125.80x = 61,407,699,587,393.82 - Step 5: Solve for x
x = 61,407,699,587,393.82/11,221,125.80 - Step 6: Final answer
x = 5,472,507.90
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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.