Finding the Fourth Proportional to 4,620,378.35, 6,373,562.40 and 2,686,425.18
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Solution
The fourth proportional to 4,620,378.35, 6,373,562.40 and 2,686,425.18 is: 3,705,778.45
Step by Step Solution
- Step 1: Write the proportion equation
4,620,378.35 : 6,373,562.40 = 2,686,425.18 : x - Step 2: Convert to fraction form
4,620,378.35/6,373,562.40 = 2,686,425.18/x - Step 3: Cross multiply
4,620,378.35x = 6,373,562.40 × 2,686,425.18 - Step 4: Simplify right side
4,620,378.35x = 17,122,098,517,661.23 - Step 5: Solve for x
x = 17,122,098,517,661.23/4,620,378.35 - Step 6: Final answer
x = 3,705,778.45
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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.