Finding the Fourth Proportional to 11,277,807.40, 15,563,391.87 and 6,121,171.09
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Solution
The fourth proportional to 11,277,807.40, 15,563,391.87 and 6,121,171.09 is: 8,447,225.69
Step by Step Solution
- Step 1: Write the proportion equation
11,277,807.40 : 15,563,391.87 = 6,121,171.09 : x - Step 2: Convert to fraction form
11,277,807.40/15,563,391.87 = 6,121,171.09/x - Step 3: Cross multiply
11,277,807.40x = 15,563,391.87 × 6,121,171.09 - Step 4: Simplify right side
11,277,807.40x = 95,266,184,376,985.03 - Step 5: Solve for x
x = 95,266,184,376,985.03/11,277,807.40 - Step 6: Final answer
x = 8,447,225.69
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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.