Finding the Fourth Proportional to 4,645,915.81, 6,408,781.02 and 4,317,116.42
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Solution
The fourth proportional to 4,645,915.81, 6,408,781.02 and 4,317,116.42 is: 5,955,220.65
Step by Step Solution
- Step 1: Write the proportion equation
4,645,915.81 : 6,408,781.02 = 4,317,116.42 : x - Step 2: Convert to fraction form
4,645,915.81/6,408,781.02 = 4,317,116.42/x - Step 3: Cross multiply
4,645,915.81x = 6,408,781.02 × 4,317,116.42 - Step 4: Simplify right side
4,645,915.81x = 27,667,453,800,441.09 - Step 5: Solve for x
x = 27,667,453,800,441.09/4,645,915.81 - Step 6: Final answer
x = 5,955,220.65
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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.