Finding the Fourth Proportional to 5,385,745.94, 7,432,320.92 and 2,938,357.21
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Solution
The fourth proportional to 5,385,745.94, 7,432,320.92 and 2,938,357.21 is: 4,054,928.32
Step by Step Solution
- Step 1: Write the proportion equation
5,385,745.94 : 7,432,320.92 = 2,938,357.21 : x - Step 2: Convert to fraction form
5,385,745.94/7,432,320.92 = 2,938,357.21/x - Step 3: Cross multiply
5,385,745.94x = 7,432,320.92 × 2,938,357.21 - Step 4: Simplify right side
5,385,745.94x = 21,838,813,725,154.23 - Step 5: Solve for x
x = 21,838,813,725,154.23/5,385,745.94 - Step 6: Final answer
x = 4,054,928.32
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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.