Finding the Fourth Proportional to 25,542,540.05, 38,312,436.41 and 12,575,763.99
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Solution
The fourth proportional to 25,542,540.05, 38,312,436.41 and 12,575,763.99 is: 18,862,969.67
Step by Step Solution
- Step 1: Write the proportion equation
25,542,540.05 : 38,312,436.41 = 12,575,763.99 : x - Step 2: Convert to fraction form
25,542,540.05/38,312,436.41 = 12,575,763.99/x - Step 3: Cross multiply
25,542,540.05x = 38,312,436.41 × 12,575,763.99 - Step 4: Simplify right side
25,542,540.05x = 481,808,158,158,323.12 - Step 5: Solve for x
x = 481,808,158,158,323.12/25,542,540.05 - Step 6: Final answer
x = 18,862,969.67
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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.