Finding the Fourth Proportional to 11,711,178.77, 16,161,931.85 and 6,484,186.94
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Solution
The fourth proportional to 11,711,178.77, 16,161,931.85 and 6,484,186.94 is: 8,948,457.66
Step by Step Solution
- Step 1: Write the proportion equation
11,711,178.77 : 16,161,931.85 = 6,484,186.94 : x - Step 2: Convert to fraction form
11,711,178.77/16,161,931.85 = 6,484,186.94/x - Step 3: Cross multiply
11,711,178.77x = 16,161,931.85 × 6,484,186.94 - Step 4: Simplify right side
11,711,178.77x = 104,796,987,313,709.44 - Step 5: Solve for x
x = 104,796,987,313,709.44/11,711,178.77 - Step 6: Final answer
x = 8,948,457.66
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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.