Finding the Fourth Proportional to 20,903,963.58, 28,846,494.90 and 11,612,135.88
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Solution
The fourth proportional to 20,903,963.58, 28,846,494.90 and 11,612,135.88 is: 16,024,205.99
Step by Step Solution
- Step 1: Write the proportion equation
20,903,963.58 : 28,846,494.90 = 11,612,135.88 : x - Step 2: Convert to fraction form
20,903,963.58/28,846,494.90 = 11,612,135.88/x - Step 3: Cross multiply
20,903,963.58x = 28,846,494.90 × 11,612,135.88 - Step 4: Simplify right side
20,903,963.58x = 334,969,418,440,527 - Step 5: Solve for x
x = 334,969,418,440,527/20,903,963.58 - Step 6: Final answer
x = 16,024,205.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.