Finding the Fourth Proportional to 1,190,799,939.21, 1,786,284,939.39 and 317,396,732.37
Calculator
Solution
The fourth proportional to 1,190,799,939.21, 1,786,284,939.39 and 317,396,732.37 is: 476,117,762.67
Step by Step Solution
- Step 1: Write the proportion equation
1,190,799,939.21 : 1,786,284,939.39 = 317,396,732.37 : x - Step 2: Convert to fraction form
1,190,799,939.21/1,786,284,939.39 = 317,396,732.37/x - Step 3: Cross multiply
1,190,799,939.21x = 1,786,284,939.39 × 317,396,732.37 - Step 4: Simplify right side
1,190,799,939.21x = 566,961,002,844,129,536 - Step 5: Solve for x
x = 566,961,002,844,129,536/1,190,799,939.21 - Step 6: Final answer
x = 476,117,762.67
Related Problems
Find fourth proportional to 595,399,969.61, 893,142,469.70 and 158,698,366.19
Half scale
Find fourth proportional to 2,381,599,878.42, 3,572,569,878.78 and 634,793,464.74
Double scale
Find fourth proportional to 1,190,799,940.21, 1,786,284,940.89 and 317,396,733.37
Similar ratio
Find fourth proportional to 1,786,199,908.82, 2,679,427,409.09 and 476,095,098.56
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.