Finding the Fourth Proportional to 1,539,339,057.90, 2,308,775,286.26 and 418,950,023.38
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Solution
The fourth proportional to 1,539,339,057.90, 2,308,775,286.26 and 418,950,023.38 is: 628,361,539.45
Step by Step Solution
- Step 1: Write the proportion equation
1,539,339,057.90 : 2,308,775,286.26 = 418,950,023.38 : x - Step 2: Convert to fraction form
1,539,339,057.90/2,308,775,286.26 = 418,950,023.38/x - Step 3: Cross multiply
1,539,339,057.90x = 2,308,775,286.26 × 418,950,023.38 - Step 4: Simplify right side
1,539,339,057.90x = 967,261,460,157,793,280 - Step 5: Solve for x
x = 967,261,460,157,793,280/1,539,339,057.90 - Step 6: Final answer
x = 628,361,539.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.