Finding the Fourth Proportional to 13,269,642.08, 18,311,517 and 7,389,579.56
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Solution
The fourth proportional to 13,269,642.08, 18,311,517 and 7,389,579.56 is: 10,197,291.75
Step by Step Solution
- Step 1: Write the proportion equation
13,269,642.08 : 18,311,517 = 7,389,579.56 : x - Step 2: Convert to fraction form
13,269,642.08/18,311,517 = 7,389,579.56/x - Step 3: Cross multiply
13,269,642.08x = 18,311,517 × 7,389,579.56 - Step 4: Simplify right side
13,269,642.08x = 135,314,411,735,792.52 - Step 5: Solve for x
x = 135,314,411,735,792.52/13,269,642.08 - Step 6: Final answer
x = 10,197,291.75
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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.