Finding the Fourth Proportional to 19,404,860.80, 29,107,291.20 and 13,731,491.20
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Solution
The fourth proportional to 19,404,860.80, 29,107,291.20 and 13,731,491.20 is: 20,597,236.80
Step by Step Solution
- Step 1: Write the proportion equation
19,404,860.80 : 29,107,291.20 = 13,731,491.20 : x - Step 2: Convert to fraction form
19,404,860.80/29,107,291.20 = 13,731,491.20/x - Step 3: Cross multiply
19,404,860.80x = 29,107,291.20 × 13,731,491.20 - Step 4: Simplify right side
19,404,860.80x = 399,686,512,968,637.44 - Step 5: Solve for x
x = 399,686,512,968,637.44/19,404,860.80 - Step 6: Final answer
x = 20,597,236.80
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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.