Finding the Fourth Proportional to 315,202,921.20, 472,166,652.60 and 218,268,082.80
Calculator
Solution
The fourth proportional to 315,202,921.20, 472,166,652.60 and 218,268,082.80 is: 326,960,516.84
Step by Step Solution
- Step 1: Write the proportion equation
315,202,921.20 : 472,166,652.60 = 218,268,082.80 : x - Step 2: Convert to fraction form
315,202,921.20/472,166,652.60 = 218,268,082.80/x - Step 3: Cross multiply
315,202,921.20x = 472,166,652.60 × 218,268,082.80 - Step 4: Simplify right side
315,202,921.20x = 103,058,910,025,095,648 - Step 5: Solve for x
x = 103,058,910,025,095,648/315,202,921.20 - Step 6: Final answer
x = 326,960,516.84
Related Problems
Find fourth proportional to 157,601,460.60, 236,083,326.30 and 109,134,041.40
Half scale
Find fourth proportional to 630,405,842.40, 944,333,305.20 and 436,536,165.60
Double scale
Find fourth proportional to 315,202,922.20, 472,166,654.10 and 218,268,083.80
Similar ratio
Find fourth proportional to 472,804,381.80, 708,249,978.90 and 327,402,124.20
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.