Finding the Fourth Proportional to 7,880,723.37, 10,871,262.90 and 6,412,271.58
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Solution
The fourth proportional to 7,880,723.37, 10,871,262.90 and 6,412,271.58 is: 8,845,569.99
Step by Step Solution
- Step 1: Write the proportion equation
7,880,723.37 : 10,871,262.90 = 6,412,271.58 : x - Step 2: Convert to fraction form
7,880,723.37/10,871,262.90 = 6,412,271.58/x - Step 3: Cross multiply
7,880,723.37x = 10,871,262.90 × 6,412,271.58 - Step 4: Simplify right side
7,880,723.37x = 69,709,490,132,378.38 - Step 5: Solve for x
x = 69,709,490,132,378.38/7,880,723.37 - Step 6: Final answer
x = 8,845,569.99
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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.