Finding the Fourth Proportional to 19,720,272.30, 29,580,408.45 and 11,217,216.30
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Solution
The fourth proportional to 19,720,272.30, 29,580,408.45 and 11,217,216.30 is: 16,825,824.45
Step by Step Solution
- Step 1: Write the proportion equation
19,720,272.30 : 29,580,408.45 = 11,217,216.30 : x - Step 2: Convert to fraction form
19,720,272.30/29,580,408.45 = 11,217,216.30/x - Step 3: Cross multiply
19,720,272.30x = 29,580,408.45 × 11,217,216.30 - Step 4: Simplify right side
19,720,272.30x = 331,809,839,825,997.75 - Step 5: Solve for x
x = 331,809,839,825,997.75/19,720,272.30 - Step 6: Final answer
x = 16,825,824.45
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Similar ratio
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1.5x scale
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.