Finding the Fourth Proportional to 1,153,840,668.75, 1,592,301,522.56 and 625,204,245.96
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Solution
The fourth proportional to 1,153,840,668.75, 1,592,301,522.56 and 625,204,245.96 is: 862,782,617.84
Step by Step Solution
- Step 1: Write the proportion equation
1,153,840,668.75 : 1,592,301,522.56 = 625,204,245.96 : x - Step 2: Convert to fraction form
1,153,840,668.75/1,592,301,522.56 = 625,204,245.96/x - Step 3: Cross multiply
1,153,840,668.75x = 1,592,301,522.56 × 625,204,245.96 - Step 4: Simplify right side
1,153,840,668.75x = 995,513,672,749,958,784 - Step 5: Solve for x
x = 995,513,672,749,958,784/1,153,840,668.75 - Step 6: Final answer
x = 862,782,617.84
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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.