Finding the Fourth Proportional to 314,931,985.20, 472,256,260.20 and 120,778,873.20
Calculator
Solution
The fourth proportional to 314,931,985.20, 472,256,260.20 and 120,778,873.20 is: 181,113,959.99
Step by Step Solution
- Step 1: Write the proportion equation
314,931,985.20 : 472,256,260.20 = 120,778,873.20 : x - Step 2: Convert to fraction form
314,931,985.20/472,256,260.20 = 120,778,873.20/x - Step 3: Cross multiply
314,931,985.20x = 472,256,260.20 × 120,778,873.20 - Step 4: Simplify right side
314,931,985.20x = 57,038,578,968,602,008 - Step 5: Solve for x
x = 57,038,578,968,602,008/314,931,985.20 - Step 6: Final answer
x = 181,113,959.99
Related Problems
Find fourth proportional to 157,465,992.60, 236,128,130.10 and 60,389,436.60
Half scale
Find fourth proportional to 629,863,970.40, 944,512,520.40 and 241,557,746.40
Double scale
Find fourth proportional to 314,931,986.20, 472,256,261.70 and 120,778,874.20
Similar ratio
Find fourth proportional to 472,397,977.80, 708,384,390.30 and 181,168,309.80
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.