Finding the Fourth Proportional to 31,515,570.99, 43,491,489.78 and 17,028,882.99
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Solution
The fourth proportional to 31,515,570.99, 43,491,489.78 and 17,028,882.99 is: 23,499,859.51
Step by Step Solution
- Step 1: Write the proportion equation
31,515,570.99 : 43,491,489.78 = 17,028,882.99 : x - Step 2: Convert to fraction form
31,515,570.99/43,491,489.78 = 17,028,882.99/x - Step 3: Cross multiply
31,515,570.99x = 43,491,489.78 × 17,028,882.99 - Step 4: Simplify right side
31,515,570.99x = 740,611,490,588,259 - Step 5: Solve for x
x = 740,611,490,588,259/31,515,570.99 - Step 6: Final answer
x = 23,499,859.51
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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.