Finding the Third Proportional to 211,312,479 and 291,986,982
Calculator
Solution
The third proportional to 211,312,479 and 291,986,982 is: 403,461,253.50
Step by Step Solution
- Step 1: Write the proportion equation
211,312,479 : 291,986,982 = 291,986,982 : x - Step 2: Convert to fraction form
211,312,479/291,986,982 = 291,986,982/x - Step 3: Cross multiply
211,312,479x = 291,986,982 × 291,986,982 - Step 4: Simplify right side
211,312,479x = 85,256,397,657,468,320 - Step 5: Solve for x
x = 85,256,397,657,468,320/211,312,479 - Step 6: Final answer
x = 403,461,253.50
Related Problems
Find third proportional to 105,656,239.50 and 145,993,491
Half scale
Find third proportional to 422,624,958 and 583,973,964
Double scale
Find third proportional to 211,312,481 and 291,986,985
Similar ratio
Find third proportional to 316,968,718.50 and 437,980,473
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.