Finding the Fourth Proportional to 7,871,009.68, 11,798,621.76 and 2,749,463.92
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Solution
The fourth proportional to 7,871,009.68, 11,798,621.76 and 2,749,463.92 is: 4,121,438.82
Step by Step Solution
- Step 1: Write the proportion equation
7,871,009.68 : 11,798,621.76 = 2,749,463.92 : x - Step 2: Convert to fraction form
7,871,009.68/11,798,621.76 = 2,749,463.92/x - Step 3: Cross multiply
7,871,009.68x = 11,798,621.76 × 2,749,463.92 - Step 4: Simplify right side
7,871,009.68x = 32,439,884,834,846.90 - Step 5: Solve for x
x = 32,439,884,834,846.90/7,871,009.68 - Step 6: Final answer
x = 4,121,438.82
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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.