Finding the Fourth Proportional to 5,185,932.99, 7,156,399.93 and 2,862,775.63
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Solution
The fourth proportional to 5,185,932.99, 7,156,399.93 and 2,862,775.63 is: 3,950,526.81
Step by Step Solution
- Step 1: Write the proportion equation
5,185,932.99 : 7,156,399.93 = 2,862,775.63 : x - Step 2: Convert to fraction form
5,185,932.99/7,156,399.93 = 2,862,775.63/x - Step 3: Cross multiply
5,185,932.99x = 7,156,399.93 × 2,862,775.63 - Step 4: Simplify right side
5,185,932.99x = 20,487,167,318,137.70 - Step 5: Solve for x
x = 20,487,167,318,137.70/5,185,932.99 - Step 6: Final answer
x = 3,950,526.81
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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.