Finding the Fourth Proportional to 7,817,921.40, 11,728,355.28 and 2,961,682.44
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Solution
The fourth proportional to 7,817,921.40, 11,728,355.28 and 2,961,682.44 is: 4,443,081.75
Step by Step Solution
- Step 1: Write the proportion equation
7,817,921.40 : 11,728,355.28 = 2,961,682.44 : x - Step 2: Convert to fraction form
7,817,921.40/11,728,355.28 = 2,961,682.44/x - Step 3: Cross multiply
7,817,921.40x = 11,728,355.28 × 2,961,682.44 - Step 4: Simplify right side
7,817,921.40x = 34,735,663,882,857.28 - Step 5: Solve for x
x = 34,735,663,882,857.28/7,817,921.40 - Step 6: Final answer
x = 4,443,081.75
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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.