Finding the Fourth Proportional to 56,168,192.21, 77,512,210.28 and 31,388,379.09
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Solution
The fourth proportional to 56,168,192.21, 77,512,210.28 and 31,388,379.09 is: 43,316,021.84
Step by Step Solution
- Step 1: Write the proportion equation
56,168,192.21 : 77,512,210.28 = 31,388,379.09 : x - Step 2: Convert to fraction form
56,168,192.21/77,512,210.28 = 31,388,379.09/x - Step 3: Cross multiply
56,168,192.21x = 77,512,210.28 × 31,388,379.09 - Step 4: Simplify right side
56,168,192.21x = 2,432,982,640,042,529 - Step 5: Solve for x
x = 2,432,982,640,042,529/56,168,192.21 - Step 6: Final answer
x = 43,316,021.84
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1.5x scale
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.