Finding the Fourth Proportional to 11,277,806.99, 15,563,385.16 and 6,121,169.60
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Solution
The fourth proportional to 11,277,806.99, 15,563,385.16 and 6,121,169.60 is: 8,447,220.29
Step by Step Solution
- Step 1: Write the proportion equation
11,277,806.99 : 15,563,385.16 = 6,121,169.60 : x - Step 2: Convert to fraction form
11,277,806.99/15,563,385.16 = 6,121,169.60/x - Step 3: Cross multiply
11,277,806.99x = 15,563,385.16 × 6,121,169.60 - Step 4: Simplify right side
11,277,806.99x = 95,266,120,021,363.28 - Step 5: Solve for x
x = 95,266,120,021,363.28/11,277,806.99 - Step 6: Final answer
x = 8,447,220.29
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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.