Finding the Fourth Proportional to 11,279,154.18, 16,889,593.50 and 7,784,495.40
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Solution
The fourth proportional to 11,279,154.18, 16,889,593.50 and 7,784,495.40 is: 11,656,633.18
Step by Step Solution
- Step 1: Write the proportion equation
11,279,154.18 : 16,889,593.50 = 7,784,495.40 : x - Step 2: Convert to fraction form
11,279,154.18/16,889,593.50 = 7,784,495.40/x - Step 3: Cross multiply
11,279,154.18x = 16,889,593.50 × 7,784,495.40 - Step 4: Simplify right side
11,279,154.18x = 131,476,962,908,619.91 - Step 5: Solve for x
x = 131,476,962,908,619.91/11,279,154.18 - Step 6: Final answer
x = 11,656,633.18
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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.