Finding the Fourth Proportional to 522,285,855.24, 720,754,475.70 and 287,331,473.46
Calculator
Solution
The fourth proportional to 522,285,855.24, 720,754,475.70 and 287,331,473.46 is: 396,517,430.88
Step by Step Solution
- Step 1: Write the proportion equation
522,285,855.24 : 720,754,475.70 = 287,331,473.46 : x - Step 2: Convert to fraction form
522,285,855.24/720,754,475.70 = 287,331,473.46/x - Step 3: Cross multiply
522,285,855.24x = 720,754,475.70 × 287,331,473.46 - Step 4: Simplify right side
522,285,855.24x = 207,095,445,505,770,752 - Step 5: Solve for x
x = 207,095,445,505,770,752/522,285,855.24 - Step 6: Final answer
x = 396,517,430.88
Related Problems
Find fourth proportional to 261,142,927.62, 360,377,237.85 and 143,665,736.73
Half scale
Find fourth proportional to 1,044,571,710.48, 1,441,508,951.40 and 574,662,946.92
Double scale
Find fourth proportional to 522,285,856.24, 720,754,477.08 and 287,331,474.46
Similar ratio
Find fourth proportional to 783,428,782.86, 1,081,131,713.55 and 430,997,210.19
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.