Finding the Fourth Proportional to 291,800,207.53, 402,693,832.44 and 159,638,138.15
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Solution
The fourth proportional to 291,800,207.53, 402,693,832.44 and 159,638,138.15 is: 220,305,853.10
Step by Step Solution
- Step 1: Write the proportion equation
291,800,207.53 : 402,693,832.44 = 159,638,138.15 : x - Step 2: Convert to fraction form
291,800,207.53/402,693,832.44 = 159,638,138.15/x - Step 3: Cross multiply
291,800,207.53x = 402,693,832.44 × 159,638,138.15 - Step 4: Simplify right side
291,800,207.53x = 64,285,293,655,209,672 - Step 5: Solve for x
x = 64,285,293,655,209,672/291,800,207.53 - Step 6: Final answer
x = 220,305,853.10
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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.