Finding the Fourth Proportional to 11,122,603.80, 16,683,905.70 and 3,934,372.20
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Solution
The fourth proportional to 11,122,603.80, 16,683,905.70 and 3,934,372.20 is: 5,901,558.30
Step by Step Solution
- Step 1: Write the proportion equation
11,122,603.80 : 16,683,905.70 = 3,934,372.20 : x - Step 2: Convert to fraction form
11,122,603.80/16,683,905.70 = 3,934,372.20/x - Step 3: Cross multiply
11,122,603.80x = 16,683,905.70 × 3,934,372.20 - Step 4: Simplify right side
11,122,603.80x = 65,640,694,773,501.54 - Step 5: Solve for x
x = 65,640,694,773,501.54/11,122,603.80 - Step 6: Final answer
x = 5,901,558.30
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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.