Finding the Fourth Proportional to 47,391,207.20, 71,086,810.80 and 47,391,207.20
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Solution
The fourth proportional to 47,391,207.20, 71,086,810.80 and 47,391,207.20 is: 71,086,810.80
Step by Step Solution
- Step 1: Write the proportion equation
47,391,207.20 : 71,086,810.80 = 47,391,207.20 : x - Step 2: Convert to fraction form
47,391,207.20/71,086,810.80 = 47,391,207.20/x - Step 3: Cross multiply
47,391,207.20x = 71,086,810.80 × 47,391,207.20 - Step 4: Simplify right side
47,391,207.20x = 3,368,889,779,809,998 - Step 5: Solve for x
x = 3,368,889,779,809,998/47,391,207.20 - Step 6: Final answer
x = 71,086,810.80
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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.