Finding the Fourth Proportional to 11,457,450.40, 15,810,965.44 and 6,300,811.95
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Solution
The fourth proportional to 11,457,450.40, 15,810,965.44 and 6,300,811.95 is: 8,694,946.65
Step by Step Solution
- Step 1: Write the proportion equation
11,457,450.40 : 15,810,965.44 = 6,300,811.95 : x - Step 2: Convert to fraction form
11,457,450.40/15,810,965.44 = 6,300,811.95/x - Step 3: Cross multiply
11,457,450.40x = 15,810,965.44 × 6,300,811.95 - Step 4: Simplify right side
11,457,450.40x = 99,621,919,985,389 - Step 5: Solve for x
x = 99,621,919,985,389/11,457,450.40 - Step 6: Final answer
x = 8,694,946.65
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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.