Finding the Fourth Proportional to 29,289,132.54, 40,423,123.10 and 18,129,207.60
Calculator
Solution
The fourth proportional to 29,289,132.54, 40,423,123.10 and 18,129,207.60 is: 25,020,856.78
Step by Step Solution
- Step 1: Write the proportion equation
29,289,132.54 : 40,423,123.10 = 18,129,207.60 : x - Step 2: Convert to fraction form
29,289,132.54/40,423,123.10 = 18,129,207.60/x - Step 3: Cross multiply
29,289,132.54x = 40,423,123.10 × 18,129,207.60 - Step 4: Simplify right side
29,289,132.54x = 732,839,190,565,578.62 - Step 5: Solve for x
x = 732,839,190,565,578.62/29,289,132.54 - Step 6: Final answer
x = 25,020,856.78
Related Problems
Find fourth proportional to 14,644,566.27, 20,211,561.55 and 9,064,603.80
Half scale
Find fourth proportional to 58,578,265.08, 80,846,246.21 and 36,258,415.20
Double scale
Find fourth proportional to 29,289,133.54, 40,423,124.48 and 18,129,208.60
Similar ratio
Find fourth proportional to 43,933,698.81, 60,634,684.65 and 27,193,811.40
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.