Finding the Fourth Proportional to 1,096,771,839.13, 1,513,545,138.15 and 626,883,249.17
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Solution
The fourth proportional to 1,096,771,839.13, 1,513,545,138.15 and 626,883,249.17 is: 865,098,883.94
Step by Step Solution
- Step 1: Write the proportion equation
1,096,771,839.13 : 1,513,545,138.15 = 626,883,249.17 : x - Step 2: Convert to fraction form
1,096,771,839.13/1,513,545,138.15 = 626,883,249.17/x - Step 3: Cross multiply
1,096,771,839.13x = 1,513,545,138.15 × 626,883,249.17 - Step 4: Simplify right side
1,096,771,839.13x = 948,816,093,964,717,184 - Step 5: Solve for x
x = 948,816,093,964,717,184/1,096,771,839.13 - Step 6: Final answer
x = 865,098,883.94
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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.