Finding the Fourth Proportional to 4,753,867.70, 7,128,220.98 and 2,158,747.58
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Solution
The fourth proportional to 4,753,867.70, 7,128,220.98 and 2,158,747.58 is: 3,236,949.52
Step by Step Solution
- Step 1: Write the proportion equation
4,753,867.70 : 7,128,220.98 = 2,158,747.58 : x - Step 2: Convert to fraction form
4,753,867.70/7,128,220.98 = 2,158,747.58/x - Step 3: Cross multiply
4,753,867.70x = 7,128,220.98 × 2,158,747.58 - Step 4: Simplify right side
4,753,867.70x = 15,388,029,790,280.23 - Step 5: Solve for x
x = 15,388,029,790,280.23/4,753,867.70 - Step 6: Final answer
x = 3,236,949.52
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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.