Finding the Fourth Proportional to 13,226,553.45, 18,254,635.88 and 8,072,909.82
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Solution
The fourth proportional to 13,226,553.45, 18,254,635.88 and 8,072,909.82 is: 11,141,831.45
Step by Step Solution
- Step 1: Write the proportion equation
13,226,553.45 : 18,254,635.88 = 8,072,909.82 : x - Step 2: Convert to fraction form
13,226,553.45/18,254,635.88 = 8,072,909.82/x - Step 3: Cross multiply
13,226,553.45x = 18,254,635.88 × 8,072,909.82 - Step 4: Simplify right side
13,226,553.45x = 147,368,029,215,811.81 - Step 5: Solve for x
x = 147,368,029,215,811.81/13,226,553.45 - Step 6: Final answer
x = 11,141,831.45
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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.