Finding the Fourth Proportional to 39,307,772.40, 58,961,658.60 and 20,175,896.40
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Solution
The fourth proportional to 39,307,772.40, 58,961,658.60 and 20,175,896.40 is: 30,263,844.60
Step by Step Solution
- Step 1: Write the proportion equation
39,307,772.40 : 58,961,658.60 = 20,175,896.40 : x - Step 2: Convert to fraction form
39,307,772.40/58,961,658.60 = 20,175,896.40/x - Step 3: Cross multiply
39,307,772.40x = 58,961,658.60 × 20,175,896.40 - Step 4: Simplify right side
39,307,772.40x = 1,189,604,315,485,769 - Step 5: Solve for x
x = 1,189,604,315,485,769/39,307,772.40 - Step 6: Final answer
x = 30,263,844.60
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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.