Finding the Fourth Proportional to 7,963,451.29, 11,945,219.60 and 1,979,819.29
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Solution
The fourth proportional to 7,963,451.29, 11,945,219.60 and 1,979,819.29 is: 2,969,739.54
Step by Step Solution
- Step 1: Write the proportion equation
7,963,451.29 : 11,945,219.60 = 1,979,819.29 : x - Step 2: Convert to fraction form
7,963,451.29/11,945,219.60 = 1,979,819.29/x - Step 3: Cross multiply
7,963,451.29x = 11,945,219.60 × 1,979,819.29 - Step 4: Simplify right side
7,963,451.29x = 23,649,376,187,366.08 - Step 5: Solve for x
x = 23,649,376,187,366.08/7,963,451.29 - Step 6: Final answer
x = 2,969,739.54
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1.5x scale
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.