Finding the Fourth Proportional to 15,832,908.42, 21,849,455.97 and 8,589,564.42
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Solution
The fourth proportional to 15,832,908.42, 21,849,455.97 and 8,589,564.42 is: 11,853,621.88
Step by Step Solution
- Step 1: Write the proportion equation
15,832,908.42 : 21,849,455.97 = 8,589,564.42 : x - Step 2: Convert to fraction form
15,832,908.42/21,849,455.97 = 8,589,564.42/x - Step 3: Cross multiply
15,832,908.42x = 21,849,455.97 × 8,589,564.42 - Step 4: Simplify right side
15,832,908.42x = 187,677,309,596,268.56 - Step 5: Solve for x
x = 187,677,309,596,268.56/15,832,908.42 - Step 6: Final answer
x = 11,853,621.88
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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.