Finding the Fourth Proportional to 908,107,248.66, 1,253,187,954.81 and 490,419,493.44
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Solution
The fourth proportional to 908,107,248.66, 1,253,187,954.81 and 490,419,493.44 is: 676,778,874.84
Step by Step Solution
- Step 1: Write the proportion equation
908,107,248.66 : 1,253,187,954.81 = 490,419,493.44 : x - Step 2: Convert to fraction form
908,107,248.66/1,253,187,954.81 = 490,419,493.44/x - Step 3: Cross multiply
908,107,248.66x = 1,253,187,954.81 × 490,419,493.44 - Step 4: Simplify right side
908,107,248.66x = 614,587,801,983,029,760 - Step 5: Solve for x
x = 614,587,801,983,029,760/908,107,248.66 - Step 6: Final answer
x = 676,778,874.84
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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.