Finding the Fourth Proportional to 7,345,122.30, 11,017,683.45 and 3,985,890.30
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Solution
The fourth proportional to 7,345,122.30, 11,017,683.45 and 3,985,890.30 is: 5,978,835.45
Step by Step Solution
- Step 1: Write the proportion equation
7,345,122.30 : 11,017,683.45 = 3,985,890.30 : x - Step 2: Convert to fraction form
7,345,122.30/11,017,683.45 = 3,985,890.30/x - Step 3: Cross multiply
7,345,122.30x = 11,017,683.45 × 3,985,890.30 - Step 4: Simplify right side
7,345,122.30x = 43,915,277,591,825.53 - Step 5: Solve for x
x = 43,915,277,591,825.53/7,345,122.30 - Step 6: Final answer
x = 5,978,835.45
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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.