Finding the Fourth Proportional to 18,422,125.79, 27,621,364.23 and 7,646,864.27
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Solution
The fourth proportional to 18,422,125.79, 27,621,364.23 and 7,646,864.27 is: 11,465,388.17
Step by Step Solution
- Step 1: Write the proportion equation
18,422,125.79 : 27,621,364.23 = 7,646,864.27 : x - Step 2: Convert to fraction form
18,422,125.79/27,621,364.23 = 7,646,864.27/x - Step 3: Cross multiply
18,422,125.79x = 27,621,364.23 × 7,646,864.27 - Step 4: Simplify right side
18,422,125.79x = 211,216,823,080,936.25 - Step 5: Solve for x
x = 211,216,823,080,936.25/18,422,125.79 - Step 6: Final answer
x = 11,465,388.17
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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.