Finding the Fourth Proportional to 490,147,214.10, 735,220,821.15 and 486,745,991.70
Calculator
Solution
The fourth proportional to 490,147,214.10, 735,220,821.15 and 486,745,991.70 is: 730,118,987.55
Step by Step Solution
- Step 1: Write the proportion equation
490,147,214.10 : 735,220,821.15 = 486,745,991.70 : x - Step 2: Convert to fraction form
490,147,214.10/735,220,821.15 = 486,745,991.70/x - Step 3: Cross multiply
490,147,214.10x = 735,220,821.15 × 486,745,991.70 - Step 4: Simplify right side
490,147,214.10x = 357,865,787,709,145,088 - Step 5: Solve for x
x = 357,865,787,709,145,088/490,147,214.10 - Step 6: Final answer
x = 730,118,987.55
Related Problems
Find fourth proportional to 245,073,607.05, 367,610,410.58 and 243,372,995.85
Half scale
Find fourth proportional to 980,294,428.20, 1,470,441,642.30 and 973,491,983.40
Double scale
Find fourth proportional to 490,147,215.10, 735,220,822.65 and 486,745,992.70
Similar ratio
Find fourth proportional to 735,220,821.15, 1,102,831,231.73 and 730,118,987.55
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.