Finding the Fourth Proportional to 1,820,636,669.10, 2,512,469,366.29 and 985,261,239.70
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Solution
The fourth proportional to 1,820,636,669.10, 2,512,469,366.29 and 985,261,239.70 is: 1,359,655,512.03
Step by Step Solution
- Step 1: Write the proportion equation
1,820,636,669.10 : 2,512,469,366.29 = 985,261,239.70 : x - Step 2: Convert to fraction form
1,820,636,669.10/2,512,469,366.29 = 985,261,239.70/x - Step 3: Cross multiply
1,820,636,669.10x = 2,512,469,366.29 × 985,261,239.70 - Step 4: Simplify right side
1,820,636,669.10x = 2,475,438,682,539,159,040 - Step 5: Solve for x
x = 2,475,438,682,539,159,040/1,820,636,669.10 - Step 6: Final answer
x = 1,359,655,512.03
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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.