Finding the Fourth Proportional to 27,887,800.78, 38,486,099.66 and 15,498,416.38
Calculator
Solution
The fourth proportional to 27,887,800.78, 38,486,099.66 and 15,498,416.38 is: 21,388,333.99
Step by Step Solution
- Step 1: Write the proportion equation
27,887,800.78 : 38,486,099.66 = 15,498,416.38 : x - Step 2: Convert to fraction form
27,887,800.78/38,486,099.66 = 15,498,416.38/x - Step 3: Cross multiply
27,887,800.78x = 38,486,099.66 × 15,498,416.38 - Step 4: Simplify right side
27,887,800.78x = 596,473,597,372,856.38 - Step 5: Solve for x
x = 596,473,597,372,856.38/27,887,800.78 - Step 6: Final answer
x = 21,388,333.99
Related Problems
Find fourth proportional to 13,943,900.39, 19,243,049.83 and 7,749,208.19
Half scale
Find fourth proportional to 55,775,601.56, 76,972,199.32 and 30,996,832.76
Double scale
Find fourth proportional to 27,887,801.78, 38,486,101.04 and 15,498,417.38
Similar ratio
Find fourth proportional to 41,831,701.17, 57,729,149.49 and 23,247,624.57
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.