Finding the Fourth Proportional to 21,575,674.56, 29,775,336 and 12,408,324.48
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Solution
The fourth proportional to 21,575,674.56, 29,775,336 and 12,408,324.48 is: 17,124,008.32
Step by Step Solution
- Step 1: Write the proportion equation
21,575,674.56 : 29,775,336 = 12,408,324.48 : x - Step 2: Convert to fraction form
21,575,674.56/29,775,336 = 12,408,324.48/x - Step 3: Cross multiply
21,575,674.56x = 29,775,336 × 12,408,324.48 - Step 4: Simplify right side
21,575,674.56x = 369,462,030,589,025.31 - Step 5: Solve for x
x = 369,462,030,589,025.31/21,575,674.56 - Step 6: Final answer
x = 17,124,008.32
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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.