Finding the Fourth Proportional to 3,201,976,773.15, 4,418,486,688.47 and 1,948,775,122.23
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Solution
The fourth proportional to 3,201,976,773.15, 4,418,486,688.47 and 1,948,775,122.23 is: 2,689,162,834.85
Step by Step Solution
- Step 1: Write the proportion equation
3,201,976,773.15 : 4,418,486,688.47 = 1,948,775,122.23 : x - Step 2: Convert to fraction form
3,201,976,773.15/4,418,486,688.47 = 1,948,775,122.23/x - Step 3: Cross multiply
3,201,976,773.15x = 4,418,486,688.47 × 1,948,775,122.23 - Step 4: Simplify right side
3,201,976,773.15x = 8,610,636,936,394,753,024 - Step 5: Solve for x
x = 8,610,636,936,394,753,024/3,201,976,773.15 - Step 6: Final answer
x = 2,689,162,834.85
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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.