Finding the Fourth Proportional to 13,483,688.49, 18,607,568.27 and 7,372,116.99
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Solution
The fourth proportional to 13,483,688.49, 18,607,568.27 and 7,372,116.99 is: 10,173,564.17
Step by Step Solution
- Step 1: Write the proportion equation
13,483,688.49 : 18,607,568.27 = 7,372,116.99 : x - Step 2: Convert to fraction form
13,483,688.49/18,607,568.27 = 7,372,116.99/x - Step 3: Cross multiply
13,483,688.49x = 18,607,568.27 × 7,372,116.99 - Step 4: Simplify right side
13,483,688.49x = 137,177,170,148,991.33 - Step 5: Solve for x
x = 137,177,170,148,991.33/13,483,688.49 - Step 6: Final answer
x = 10,173,564.17
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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.