Finding the Fourth Proportional to 11,509,783.98, 15,883,503.47 and 6,353,146.62
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Solution
The fourth proportional to 11,509,783.98, 15,883,503.47 and 6,353,146.62 is: 8,767,343.21
Step by Step Solution
- Step 1: Write the proportion equation
11,509,783.98 : 15,883,503.47 = 6,353,146.62 : x - Step 2: Convert to fraction form
11,509,783.98/15,883,503.47 = 6,353,146.62/x - Step 3: Cross multiply
11,509,783.98x = 15,883,503.47 × 6,353,146.62 - Step 4: Simplify right side
11,509,783.98x = 100,910,226,384,188.78 - Step 5: Solve for x
x = 100,910,226,384,188.78/11,509,783.98 - Step 6: Final answer
x = 8,767,343.21
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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.