Finding the Fourth Proportional to 14,238,414.80, 21,355,548.60 and 4,139,982.80
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Solution
The fourth proportional to 14,238,414.80, 21,355,548.60 and 4,139,982.80 is: 6,209,371.28
Step by Step Solution
- Step 1: Write the proportion equation
14,238,414.80 : 21,355,548.60 = 4,139,982.80 : x - Step 2: Convert to fraction form
14,238,414.80/21,355,548.60 = 4,139,982.80/x - Step 3: Cross multiply
14,238,414.80x = 21,355,548.60 × 4,139,982.80 - Step 4: Simplify right side
14,238,414.80x = 88,411,603,888,564.08 - Step 5: Solve for x
x = 88,411,603,888,564.08/14,238,414.80 - Step 6: Final answer
x = 6,209,371.28
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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.