Finding the Fourth Proportional to 18,125,101.40, 25,012,743.96 and 9,865,143.99
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Solution
The fourth proportional to 18,125,101.40, 25,012,743.96 and 9,865,143.99 is: 13,613,955.33
Step by Step Solution
- Step 1: Write the proportion equation
18,125,101.40 : 25,012,743.96 = 9,865,143.99 : x - Step 2: Convert to fraction form
18,125,101.40/25,012,743.96 = 9,865,143.99/x - Step 3: Cross multiply
18,125,101.40x = 25,012,743.96 × 9,865,143.99 - Step 4: Simplify right side
18,125,101.40x = 246,754,320,750,402.81 - Step 5: Solve for x
x = 246,754,320,750,402.81/18,125,101.40 - Step 6: Final answer
x = 13,613,955.33
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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.