Finding the Fourth Proportional to 7,381,505.30, 11,072,257.95 and 4,139,715.20
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Solution
The fourth proportional to 7,381,505.30, 11,072,257.95 and 4,139,715.20 is: 6,209,572.80
Step by Step Solution
- Step 1: Write the proportion equation
7,381,505.30 : 11,072,257.95 = 4,139,715.20 : x - Step 2: Convert to fraction form
7,381,505.30/11,072,257.95 = 4,139,715.20/x - Step 3: Cross multiply
7,381,505.30x = 11,072,257.95 × 4,139,715.20 - Step 4: Simplify right side
7,381,505.30x = 45,835,994,533,935.84 - Step 5: Solve for x
x = 45,835,994,533,935.84/7,381,505.30 - Step 6: Final answer
x = 6,209,572.80
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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.