Finding the Fourth Proportional to 18,368,717.97, 25,348,823.47 and 10,108,780.26
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Solution
The fourth proportional to 18,368,717.97, 25,348,823.47 and 10,108,780.26 is: 13,950,112.73
Step by Step Solution
- Step 1: Write the proportion equation
18,368,717.97 : 25,348,823.47 = 10,108,780.26 : x - Step 2: Convert to fraction form
18,368,717.97/25,348,823.47 = 10,108,780.26/x - Step 3: Cross multiply
18,368,717.97x = 25,348,823.47 × 10,108,780.26 - Step 4: Simplify right side
18,368,717.97x = 256,245,686,307,760.69 - Step 5: Solve for x
x = 256,245,686,307,760.69/18,368,717.97 - Step 6: Final answer
x = 13,950,112.73
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1.5x scale
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.