Finding the Fourth Proportional to 1,539,339,057.60, 2,308,775,285.79 and 418,950,023.07
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Solution
The fourth proportional to 1,539,339,057.60, 2,308,775,285.79 and 418,950,023.07 is: 628,361,538.99
Step by Step Solution
- Step 1: Write the proportion equation
1,539,339,057.60 : 2,308,775,285.79 = 418,950,023.07 : x - Step 2: Convert to fraction form
1,539,339,057.60/2,308,775,285.79 = 418,950,023.07/x - Step 3: Cross multiply
1,539,339,057.60x = 2,308,775,285.79 × 418,950,023.07 - Step 4: Simplify right side
1,539,339,057.60x = 967,261,459,253,824,256 - Step 5: Solve for x
x = 967,261,459,253,824,256/1,539,339,057.60 - Step 6: Final answer
x = 628,361,538.99
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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.