Finding the Fourth Proportional to 21,570,213.51, 32,344,166.52 and 7,919,856.18
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Solution
The fourth proportional to 21,570,213.51, 32,344,166.52 and 7,919,856.18 is: 11,875,688.99
Step by Step Solution
- Step 1: Write the proportion equation
21,570,213.51 : 32,344,166.52 = 7,919,856.18 : x - Step 2: Convert to fraction form
21,570,213.51/32,344,166.52 = 7,919,856.18/x - Step 3: Cross multiply
21,570,213.51x = 32,344,166.52 × 7,919,856.18 - Step 4: Simplify right side
21,570,213.51x = 256,161,147,100,371.09 - Step 5: Solve for x
x = 256,161,147,100,371.09/21,570,213.51 - Step 6: Final answer
x = 11,875,688.99
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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.