Finding the Fourth Proportional to 6,965,414.80, 9,611,745.42 and 3,909,038.56
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Solution
The fourth proportional to 6,965,414.80, 9,611,745.42 and 3,909,038.56 is: 5,394,177.45
Step by Step Solution
- Step 1: Write the proportion equation
6,965,414.80 : 9,611,745.42 = 3,909,038.56 : x - Step 2: Convert to fraction form
6,965,414.80/9,611,745.42 = 3,909,038.56/x - Step 3: Cross multiply
6,965,414.80x = 9,611,745.42 × 3,909,038.56 - Step 4: Simplify right side
6,965,414.80x = 37,572,683,475,683.40 - Step 5: Solve for x
x = 37,572,683,475,683.40/6,965,414.80 - Step 6: Final answer
x = 5,394,177.45
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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.