Finding the Fourth Proportional to 5,193,968.13, 7,167,636.99 and 2,871,013.32
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Solution
The fourth proportional to 5,193,968.13, 7,167,636.99 and 2,871,013.32 is: 3,961,976.81
Step by Step Solution
- Step 1: Write the proportion equation
5,193,968.13 : 7,167,636.99 = 2,871,013.32 : x - Step 2: Convert to fraction form
5,193,968.13/7,167,636.99 = 2,871,013.32/x - Step 3: Cross multiply
5,193,968.13x = 7,167,636.99 × 2,871,013.32 - Step 4: Simplify right side
5,193,968.13x = 20,578,381,271,214.71 - Step 5: Solve for x
x = 20,578,381,271,214.71/5,193,968.13 - Step 6: Final answer
x = 3,961,976.81
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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.