Finding the Fourth Proportional to 6,643,117.20, 9,964,157.40 and 2,598,819.60
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Solution
The fourth proportional to 6,643,117.20, 9,964,157.40 and 2,598,819.60 is: 3,898,026.60
Step by Step Solution
- Step 1: Write the proportion equation
6,643,117.20 : 9,964,157.40 = 2,598,819.60 : x - Step 2: Convert to fraction form
6,643,117.20/9,964,157.40 = 2,598,819.60/x - Step 3: Cross multiply
6,643,117.20x = 9,964,157.40 × 2,598,819.60 - Step 4: Simplify right side
6,643,117.20x = 25,895,047,548,605.04 - Step 5: Solve for x
x = 25,895,047,548,605.04/6,643,117.20 - Step 6: Final answer
x = 3,898,026.60
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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.