Finding the Fourth Proportional to 4,877,408.21, 6,729,967.86 and 2,783,294.53
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Solution
The fourth proportional to 4,877,408.21, 6,729,967.86 and 2,783,294.53 is: 3,840,458.28
Step by Step Solution
- Step 1: Write the proportion equation
4,877,408.21 : 6,729,967.86 = 2,783,294.53 : x - Step 2: Convert to fraction form
4,877,408.21/6,729,967.86 = 2,783,294.53/x - Step 3: Cross multiply
4,877,408.21x = 6,729,967.86 × 2,783,294.53 - Step 4: Simplify right side
4,877,408.21x = 18,731,482,734,987.78 - Step 5: Solve for x
x = 18,731,482,734,987.78/4,877,408.21 - Step 6: Final answer
x = 3,840,458.28
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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.