Finding the Fourth Proportional to 6,871,742.63, 10,298,647.23 and 3,838,985.99
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Solution
The fourth proportional to 6,871,742.63, 10,298,647.23 and 3,838,985.99 is: 5,753,469.61
Step by Step Solution
- Step 1: Write the proportion equation
6,871,742.63 : 10,298,647.23 = 3,838,985.99 : x - Step 2: Convert to fraction form
6,871,742.63/10,298,647.23 = 3,838,985.99/x - Step 3: Cross multiply
6,871,742.63x = 10,298,647.23 × 3,838,985.99 - Step 4: Simplify right side
6,871,742.63x = 39,536,362,380,429.07 - Step 5: Solve for x
x = 39,536,362,380,429.07/6,871,742.63 - Step 6: Final answer
x = 5,753,469.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.