Finding the Fourth Proportional to 2,919,915.97, 4,379,872.86 and 2,126,248.21
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Solution
The fourth proportional to 2,919,915.97, 4,379,872.86 and 2,126,248.21 is: 3,189,371.52
Step by Step Solution
- Step 1: Write the proportion equation
2,919,915.97 : 4,379,872.86 = 2,126,248.21 : x - Step 2: Convert to fraction form
2,919,915.97/4,379,872.86 = 2,126,248.21/x - Step 3: Cross multiply
2,919,915.97x = 4,379,872.86 × 2,126,248.21 - Step 4: Simplify right side
2,919,915.97x = 9,312,696,828,602.58 - Step 5: Solve for x
x = 9,312,696,828,602.58/2,919,915.97 - Step 6: Final answer
x = 3,189,371.52
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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.