Finding the Fourth Proportional to 7,871,053.45, 10,861,576.63 and 4,338,695.62
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Solution
The fourth proportional to 7,871,053.45, 10,861,576.63 and 4,338,695.62 is: 5,987,136.95
Step by Step Solution
- Step 1: Write the proportion equation
7,871,053.45 : 10,861,576.63 = 4,338,695.62 : x - Step 2: Convert to fraction form
7,871,053.45/10,861,576.63 = 4,338,695.62/x - Step 3: Cross multiply
7,871,053.45x = 10,861,576.63 × 4,338,695.62 - Step 4: Simplify right side
7,871,053.45x = 47,125,074,950,875.37 - Step 5: Solve for x
x = 47,125,074,950,875.37/7,871,053.45 - Step 6: Final answer
x = 5,987,136.95
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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.