Finding the Fourth Proportional to 414,661,861.70, 621,995,117.90 and 138,312,317.23
Calculator
Solution
The fourth proportional to 414,661,861.70, 621,995,117.90 and 138,312,317.23 is: 207,469,251.48
Step by Step Solution
- Step 1: Write the proportion equation
414,661,861.70 : 621,995,117.90 = 138,312,317.23 : x - Step 2: Convert to fraction form
414,661,861.70/621,995,117.90 = 138,312,317.23/x - Step 3: Cross multiply
414,661,861.70x = 621,995,117.90 × 138,312,317.23 - Step 4: Simplify right side
414,661,861.70x = 86,029,586,061,804,480 - Step 5: Solve for x
x = 86,029,586,061,804,480/414,661,861.70 - Step 6: Final answer
x = 207,469,251.48
Related Problems
Find fourth proportional to 207,330,930.85, 310,997,558.95 and 69,156,158.62
Half scale
Find fourth proportional to 829,323,723.39, 1,243,990,235.79 and 276,624,634.46
Double scale
Find fourth proportional to 414,661,862.70, 621,995,119.40 and 138,312,318.23
Similar ratio
Find fourth proportional to 621,992,792.54, 932,992,676.84 and 207,468,475.85
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.