Finding the Fourth Proportional to 15,125,432.81, 20,874,861.95 and 8,600,040
Calculator
Solution
The fourth proportional to 15,125,432.81, 20,874,861.95 and 8,600,040 is: 11,869,058.56
Step by Step Solution
- Step 1: Write the proportion equation
15,125,432.81 : 20,874,861.95 = 8,600,040 : x - Step 2: Convert to fraction form
15,125,432.81/20,874,861.95 = 8,600,040/x - Step 3: Cross multiply
15,125,432.81x = 20,874,861.95 × 8,600,040 - Step 4: Simplify right side
15,125,432.81x = 179,524,647,721,477.81 - Step 5: Solve for x
x = 179,524,647,721,477.81/15,125,432.81 - Step 6: Final answer
x = 11,869,058.56
Related Problems
Find fourth proportional to 7,562,716.40, 10,437,430.97 and 4,300,020
Half scale
Find fourth proportional to 30,250,865.61, 41,749,723.89 and 17,200,080
Double scale
Find fourth proportional to 15,125,433.81, 20,874,863.33 and 8,600,041
Similar ratio
Find fourth proportional to 22,688,149.21, 31,312,292.92 and 12,900,060
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.