Finding the Fourth Proportional to 2,165,270,046.48, 2,987,731,355.40 and 1,261,174,774.80
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Solution
The fourth proportional to 2,165,270,046.48, 2,987,731,355.40 and 1,261,174,774.80 is: 1,740,222,391.86
Step by Step Solution
- Step 1: Write the proportion equation
2,165,270,046.48 : 2,987,731,355.40 = 1,261,174,774.80 : x - Step 2: Convert to fraction form
2,165,270,046.48/2,987,731,355.40 = 1,261,174,774.80/x - Step 3: Cross multiply
2,165,270,046.48x = 2,987,731,355.40 × 1,261,174,774.80 - Step 4: Simplify right side
2,165,270,046.48x = 3,768,051,419,309,493,760 - Step 5: Solve for x
x = 3,768,051,419,309,493,760/2,165,270,046.48 - Step 6: Final answer
x = 1,740,222,391.86
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1.5x scale
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.