Finding the Fourth Proportional to 4,912,138.80, 7,368,208.20 and 1,366,282.80
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Solution
The fourth proportional to 4,912,138.80, 7,368,208.20 and 1,366,282.80 is: 2,049,424.20
Step by Step Solution
- Step 1: Write the proportion equation
4,912,138.80 : 7,368,208.20 = 1,366,282.80 : x - Step 2: Convert to fraction form
4,912,138.80/7,368,208.20 = 1,366,282.80/x - Step 3: Cross multiply
4,912,138.80x = 7,368,208.20 × 1,366,282.80 - Step 4: Simplify right side
4,912,138.80x = 10,067,056,130,478.96 - Step 5: Solve for x
x = 10,067,056,130,478.96/4,912,138.80 - Step 6: Final answer
x = 2,049,424.20
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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.