Finding the Fourth Proportional to 498,232,912.20, 747,349,368.30 and 290,758,345.80
Calculator
Solution
The fourth proportional to 498,232,912.20, 747,349,368.30 and 290,758,345.80 is: 436,137,518.70
Step by Step Solution
- Step 1: Write the proportion equation
498,232,912.20 : 747,349,368.30 = 290,758,345.80 : x - Step 2: Convert to fraction form
498,232,912.20/747,349,368.30 = 290,758,345.80/x - Step 3: Cross multiply
498,232,912.20x = 747,349,368.30 × 290,758,345.80 - Step 4: Simplify right side
498,232,912.20x = 217,298,066,061,582,944 - Step 5: Solve for x
x = 217,298,066,061,582,944/498,232,912.20 - Step 6: Final answer
x = 436,137,518.70
Related Problems
Find fourth proportional to 249,116,456.10, 373,674,684.15 and 145,379,172.90
Half scale
Find fourth proportional to 996,465,824.40, 1,494,698,736.60 and 581,516,691.60
Double scale
Find fourth proportional to 498,232,913.20, 747,349,369.80 and 290,758,346.80
Similar ratio
Find fourth proportional to 747,349,368.30, 1,121,024,052.45 and 436,137,518.70
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.