Finding the Fourth Proportional to 40,364,378.64, 55,702,014.12 and 22,029,659.28
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Solution
The fourth proportional to 40,364,378.64, 55,702,014.12 and 22,029,659.28 is: 30,400,477.69
Step by Step Solution
- Step 1: Write the proportion equation
40,364,378.64 : 55,702,014.12 = 22,029,659.28 : x - Step 2: Convert to fraction form
40,364,378.64/55,702,014.12 = 22,029,659.28/x - Step 3: Cross multiply
40,364,378.64x = 55,702,014.12 × 22,029,659.28 - Step 4: Simplify right side
40,364,378.64x = 1,227,096,392,273,349 - Step 5: Solve for x
x = 1,227,096,392,273,349/40,364,378.64 - Step 6: Final answer
x = 30,400,477.69
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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.