Finding the Fourth Proportional to 25,612,862.36, 38,421,984.91 and 8,342,408.12
Calculator
Solution
The fourth proportional to 25,612,862.36, 38,421,984.91 and 8,342,408.12 is: 12,514,488.79
Step by Step Solution
- Step 1: Write the proportion equation
25,612,862.36 : 38,421,984.91 = 8,342,408.12 : x - Step 2: Convert to fraction form
25,612,862.36/38,421,984.91 = 8,342,408.12/x - Step 3: Cross multiply
25,612,862.36x = 38,421,984.91 × 8,342,408.12 - Step 4: Simplify right side
25,612,862.36x = 320,531,878,899,701.44 - Step 5: Solve for x
x = 320,531,878,899,701.44/25,612,862.36 - Step 6: Final answer
x = 12,514,488.79
Related Problems
Find fourth proportional to 12,806,431.18, 19,210,992.46 and 4,171,204.06
Half scale
Find fourth proportional to 51,225,724.72, 76,843,969.82 and 16,684,816.24
Double scale
Find fourth proportional to 25,612,863.36, 38,421,986.41 and 8,342,409.12
Similar ratio
Find fourth proportional to 38,419,293.54, 57,632,977.37 and 12,513,612.18
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.