Finding the Fourth Proportional to 611,544,438.40, 858,580,860.80 and 611,544,438.40
Calculator
Solution
The fourth proportional to 611,544,438.40, 858,580,860.80 and 611,544,438.40 is: 858,580,860.80
Step by Step Solution
- Step 1: Write the proportion equation
611,544,438.40 : 858,580,860.80 = 611,544,438.40 : x - Step 2: Convert to fraction form
611,544,438.40/858,580,860.80 = 611,544,438.40/x - Step 3: Cross multiply
611,544,438.40x = 858,580,860.80 × 611,544,438.40 - Step 4: Simplify right side
611,544,438.40x = 525,060,350,338,924,544 - Step 5: Solve for x
x = 525,060,350,338,924,544/611,544,438.40 - Step 6: Final answer
x = 858,580,860.80
Related Problems
Find fourth proportional to 305,772,219.20, 429,290,430.40 and 305,772,219.20
Half scale
Find fourth proportional to 1,223,088,876.80, 1,717,161,721.60 and 1,223,088,876.80
Double scale
Find fourth proportional to 611,544,439.40, 858,580,862.20 and 611,544,439.40
Similar ratio
Find fourth proportional to 917,316,657.60, 1,287,871,291.20 and 917,316,657.60
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.