Finding the Fourth Proportional to 7,889,617.40, 11,833,551.30 and 6,467,192.60
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Solution
The fourth proportional to 7,889,617.40, 11,833,551.30 and 6,467,192.60 is: 9,700,071.82
Step by Step Solution
- Step 1: Write the proportion equation
7,889,617.40 : 11,833,551.30 = 6,467,192.60 : x - Step 2: Convert to fraction form
7,889,617.40/11,833,551.30 = 6,467,192.60/x - Step 3: Cross multiply
7,889,617.40x = 11,833,551.30 × 6,467,192.60 - Step 4: Simplify right side
7,889,617.40x = 76,529,855,399,080.38 - Step 5: Solve for x
x = 76,529,855,399,080.38/7,889,617.40 - Step 6: Final answer
x = 9,700,071.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.