Finding the Fourth Proportional to 256,231,036.22, 353,599,170.98 and 138,756,569.06
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Solution
The fourth proportional to 256,231,036.22, 353,599,170.98 and 138,756,569.06 is: 191,484,249.96
Step by Step Solution
- Step 1: Write the proportion equation
256,231,036.22 : 353,599,170.98 = 138,756,569.06 : x - Step 2: Convert to fraction form
256,231,036.22/353,599,170.98 = 138,756,569.06/x - Step 3: Cross multiply
256,231,036.22x = 353,599,170.98 × 138,756,569.06 - Step 4: Simplify right side
256,231,036.22x = 49,064,207,786,627,920 - Step 5: Solve for x
x = 49,064,207,786,627,920/256,231,036.22 - Step 6: Final answer
x = 191,484,249.96
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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.