Finding the Fourth Proportional to 4,990,331.80, 7,485,497.70 and 4,675,403.80
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Solution
The fourth proportional to 4,990,331.80, 7,485,497.70 and 4,675,403.80 is: 7,013,105.70
Step by Step Solution
- Step 1: Write the proportion equation
4,990,331.80 : 7,485,497.70 = 4,675,403.80 : x - Step 2: Convert to fraction form
4,990,331.80/7,485,497.70 = 4,675,403.80/x - Step 3: Cross multiply
4,990,331.80x = 7,485,497.70 × 4,675,403.80 - Step 4: Simplify right side
4,990,331.80x = 34,997,724,391,471.26 - Step 5: Solve for x
x = 34,997,724,391,471.26/4,990,331.80 - Step 6: Final answer
x = 7,013,105.70
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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.