Finding the Fourth Proportional to 5,517,420.84, 7,612,899.54 and 3,225,138.12
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Solution
The fourth proportional to 5,517,420.84, 7,612,899.54 and 3,225,138.12 is: 4,450,023.52
Step by Step Solution
- Step 1: Write the proportion equation
5,517,420.84 : 7,612,899.54 = 3,225,138.12 : x - Step 2: Convert to fraction form
5,517,420.84/7,612,899.54 = 3,225,138.12/x - Step 3: Cross multiply
5,517,420.84x = 7,612,899.54 × 3,225,138.12 - Step 4: Simplify right side
5,517,420.84x = 24,552,652,510,184.46 - Step 5: Solve for x
x = 24,552,652,510,184.46/5,517,420.84 - Step 6: Final answer
x = 4,450,023.52
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1.5x scale
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.