Finding the Fourth Proportional to 10,612,673.80, 15,905,232.60 and 4,920,787.60
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Solution
The fourth proportional to 10,612,673.80, 15,905,232.60 and 4,920,787.60 is: 7,374,792.90
Step by Step Solution
- Step 1: Write the proportion equation
10,612,673.80 : 15,905,232.60 = 4,920,787.60 : x - Step 2: Convert to fraction form
10,612,673.80/15,905,232.60 = 4,920,787.60/x - Step 3: Cross multiply
10,612,673.80x = 15,905,232.60 × 4,920,787.60 - Step 4: Simplify right side
10,612,673.80x = 78,266,271,353,195.75 - Step 5: Solve for x
x = 78,266,271,353,195.75/10,612,673.80 - Step 6: Final answer
x = 7,374,792.90
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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.