Finding the Fourth Proportional to 40,128,247.41, 55,380,396.65 and 22,727,688.09
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Solution
The fourth proportional to 40,128,247.41, 55,380,396.65 and 22,727,688.09 is: 31,366,143.86
Step by Step Solution
- Step 1: Write the proportion equation
40,128,247.41 : 55,380,396.65 = 22,727,688.09 : x - Step 2: Convert to fraction form
40,128,247.41/55,380,396.65 = 22,727,688.09/x - Step 3: Cross multiply
40,128,247.41x = 55,380,396.65 × 22,727,688.09 - Step 4: Simplify right side
40,128,247.41x = 1,258,668,381,248,042.50 - Step 5: Solve for x
x = 1,258,668,381,248,042.50/40,128,247.41 - Step 6: Final answer
x = 31,366,143.86
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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.