Finding the Fourth Proportional to 347,964,306.72, 479,744,982.81 and 285,008,479.08
Calculator
Solution
The fourth proportional to 347,964,306.72, 479,744,982.81 and 285,008,479.08 is: 392,946,590.37
Step by Step Solution
- Step 1: Write the proportion equation
347,964,306.72 : 479,744,982.81 = 285,008,479.08 : x - Step 2: Convert to fraction form
347,964,306.72/479,744,982.81 = 285,008,479.08/x - Step 3: Cross multiply
347,964,306.72x = 479,744,982.81 × 285,008,479.08 - Step 4: Simplify right side
347,964,306.72x = 136,731,387,896,938,832 - Step 5: Solve for x
x = 136,731,387,896,938,832/347,964,306.72 - Step 6: Final answer
x = 392,946,590.37
Related Problems
Find fourth proportional to 173,982,153.36, 239,872,491.41 and 142,504,239.54
Half scale
Find fourth proportional to 695,928,613.44, 959,489,965.62 and 570,016,958.16
Double scale
Find fourth proportional to 347,964,307.72, 479,744,984.19 and 285,008,480.08
Similar ratio
Find fourth proportional to 521,946,460.08, 719,617,474.22 and 427,512,718.62
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.