Finding the Fourth Proportional to 853,124,809.30, 1,279,687,213.95 and 754,489,359.70
Calculator
Solution
The fourth proportional to 853,124,809.30, 1,279,687,213.95 and 754,489,359.70 is: 1,131,734,039.55
Step by Step Solution
- Step 1: Write the proportion equation
853,124,809.30 : 1,279,687,213.95 = 754,489,359.70 : x - Step 2: Convert to fraction form
853,124,809.30/1,279,687,213.95 = 754,489,359.70/x - Step 3: Cross multiply
853,124,809.30x = 1,279,687,213.95 × 754,489,359.70 - Step 4: Simplify right side
853,124,809.30x = 965,510,386,669,412,480 - Step 5: Solve for x
x = 965,510,386,669,412,480/853,124,809.30 - Step 6: Final answer
x = 1,131,734,039.55
Related Problems
Find fourth proportional to 426,562,404.65, 639,843,606.98 and 377,244,679.85
Half scale
Find fourth proportional to 1,706,249,618.60, 2,559,374,427.90 and 1,508,978,719.40
Double scale
Find fourth proportional to 853,124,810.30, 1,279,687,215.45 and 754,489,360.70
Similar ratio
Find fourth proportional to 1,279,687,213.95, 1,919,530,820.93 and 1,131,734,039.55
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.