Finding the Fourth Proportional to 19,965,786.12, 27,569,588.49 and 12,636,551.34
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Solution
The fourth proportional to 19,965,786.12, 27,569,588.49 and 12,636,551.34 is: 17,449,076.05
Step by Step Solution
- Step 1: Write the proportion equation
19,965,786.12 : 27,569,588.49 = 12,636,551.34 : x - Step 2: Convert to fraction form
19,965,786.12/27,569,588.49 = 12,636,551.34/x - Step 3: Cross multiply
19,965,786.12x = 27,569,588.49 × 12,636,551.34 - Step 4: Simplify right side
19,965,786.12x = 348,384,520,376,558.06 - Step 5: Solve for x
x = 348,384,520,376,558.06/19,965,786.12 - Step 6: Final answer
x = 17,449,076.05
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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.