Finding the Fourth Proportional to 5,405,378.95, 7,459,423.43 and 2,957,989.87
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Solution
The fourth proportional to 5,405,378.95, 7,459,423.43 and 2,957,989.87 is: 4,082,026.28
Step by Step Solution
- Step 1: Write the proportion equation
5,405,378.95 : 7,459,423.43 = 2,957,989.87 : x - Step 2: Convert to fraction form
5,405,378.95/7,459,423.43 = 2,957,989.87/x - Step 3: Cross multiply
5,405,378.95x = 7,459,423.43 × 2,957,989.87 - Step 4: Simplify right side
5,405,378.95x = 22,064,898,941,980.65 - Step 5: Solve for x
x = 22,064,898,941,980.65/5,405,378.95 - Step 6: Final answer
x = 4,082,026.28
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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.