Finding the Fourth Proportional to 11,576,865.30, 15,975,027.27 and 6,420,210.90
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Solution
The fourth proportional to 11,576,865.30, 15,975,027.27 and 6,420,210.90 is: 8,859,310.49
Step by Step Solution
- Step 1: Write the proportion equation
11,576,865.30 : 15,975,027.27 = 6,420,210.90 : x - Step 2: Convert to fraction form
11,576,865.30/15,975,027.27 = 6,420,210.90/x - Step 3: Cross multiply
11,576,865.30x = 15,975,027.27 × 6,420,210.90 - Step 4: Simplify right side
11,576,865.30x = 102,563,044,206,651.25 - Step 5: Solve for x
x = 102,563,044,206,651.25/11,576,865.30 - Step 6: Final answer
x = 8,859,310.49
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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.