Finding the Fourth Proportional to 18,621,447.19, 25,697,597.14 and 10,362,041.53
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Solution
The fourth proportional to 18,621,447.19, 25,697,597.14 and 10,362,041.53 is: 14,299,617.32
Step by Step Solution
- Step 1: Write the proportion equation
18,621,447.19 : 25,697,597.14 = 10,362,041.53 : x - Step 2: Convert to fraction form
18,621,447.19/25,697,597.14 = 10,362,041.53/x - Step 3: Cross multiply
18,621,447.19x = 25,697,597.14 × 10,362,041.53 - Step 4: Simplify right side
18,621,447.19x = 266,279,568,785,889.22 - Step 5: Solve for x
x = 266,279,568,785,889.22/18,621,447.19 - Step 6: Final answer
x = 14,299,617.32
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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.