Finding the Fourth Proportional to 256,019,219.91, 353,306,523.33 and 138,544,551.36
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Solution
The fourth proportional to 256,019,219.91, 353,306,523.33 and 138,544,551.36 is: 191,191,480.80
Step by Step Solution
- Step 1: Write the proportion equation
256,019,219.91 : 353,306,523.33 = 138,544,551.36 : x - Step 2: Convert to fraction form
256,019,219.91/353,306,523.33 = 138,544,551.36/x - Step 3: Cross multiply
256,019,219.91x = 353,306,523.33 × 138,544,551.36 - Step 4: Simplify right side
256,019,219.91x = 48,948,693,767,316,224 - Step 5: Solve for x
x = 48,948,693,767,316,224/256,019,219.91 - Step 6: Final answer
x = 191,191,480.80
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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.