Finding the Fourth Proportional to 13,646,450.79, 18,824,207.90 and 8,817,554.79
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Solution
The fourth proportional to 13,646,450.79, 18,824,207.90 and 8,817,554.79 is: 12,163,124.83
Step by Step Solution
- Step 1: Write the proportion equation
13,646,450.79 : 18,824,207.90 = 8,817,554.79 : x - Step 2: Convert to fraction form
13,646,450.79/18,824,207.90 = 8,817,554.79/x - Step 3: Cross multiply
13,646,450.79x = 18,824,207.90 × 8,817,554.79 - Step 4: Simplify right side
13,646,450.79x = 165,983,484,492,513.03 - Step 5: Solve for x
x = 165,983,484,492,513.03/13,646,450.79 - Step 6: Final answer
x = 12,163,124.83
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1.5x scale
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.