Finding the Fourth Proportional to 13,622,183.58, 18,798,759.99 and 7,427,179.65
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Solution
The fourth proportional to 13,622,183.58, 18,798,759.99 and 7,427,179.65 is: 10,249,587.87
Step by Step Solution
- Step 1: Write the proportion equation
13,622,183.58 : 18,798,759.99 = 7,427,179.65 : x - Step 2: Convert to fraction form
13,622,183.58/18,798,759.99 = 7,427,179.65/x - Step 3: Cross multiply
13,622,183.58x = 18,798,759.99 × 7,427,179.65 - Step 4: Simplify right side
13,622,183.58x = 139,621,767,642,962.20 - Step 5: Solve for x
x = 139,621,767,642,962.20/13,622,183.58 - Step 6: Final answer
x = 10,249,587.87
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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.