Finding the Fourth Proportional to 291,800,207.28, 402,693,832.10 and 159,638,137.90
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Solution
The fourth proportional to 291,800,207.28, 402,693,832.10 and 159,638,137.90 is: 220,305,852.75
Step by Step Solution
- Step 1: Write the proportion equation
291,800,207.28 : 402,693,832.10 = 159,638,137.90 : x - Step 2: Convert to fraction form
291,800,207.28/402,693,832.10 = 159,638,137.90/x - Step 3: Cross multiply
291,800,207.28x = 402,693,832.10 × 159,638,137.90 - Step 4: Simplify right side
291,800,207.28x = 64,285,293,497,447,592 - Step 5: Solve for x
x = 64,285,293,497,447,592/291,800,207.28 - Step 6: Final answer
x = 220,305,852.75
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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.