Finding the Fourth Proportional to 1,820,636,677.12, 2,512,469,377.34 and 985,261,247.68
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Solution
The fourth proportional to 1,820,636,677.12, 2,512,469,377.34 and 985,261,247.68 is: 1,359,655,523.03
Step by Step Solution
- Step 1: Write the proportion equation
1,820,636,677.12 : 2,512,469,377.34 = 985,261,247.68 : x - Step 2: Convert to fraction form
1,820,636,677.12/2,512,469,377.34 = 985,261,247.68/x - Step 3: Cross multiply
1,820,636,677.12x = 2,512,469,377.34 × 985,261,247.68 - Step 4: Simplify right side
1,820,636,677.12x = 2,475,438,713,475,801,088 - Step 5: Solve for x
x = 2,475,438,713,475,801,088/1,820,636,677.12 - Step 6: Final answer
x = 1,359,655,523.03
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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.