Finding the Fourth Proportional to 1,891,243,256.40, 2,829,212,134.20 and 1,661,660,744.40
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Solution
The fourth proportional to 1,891,243,256.40, 2,829,212,134.20 and 1,661,660,744.40 is: 2,485,767,351.75
Step by Step Solution
- Step 1: Write the proportion equation
1,891,243,256.40 : 2,829,212,134.20 = 1,661,660,744.40 : x - Step 2: Convert to fraction form
1,891,243,256.40/2,829,212,134.20 = 1,661,660,744.40/x - Step 3: Cross multiply
1,891,243,256.40x = 2,829,212,134.20 × 1,661,660,744.40 - Step 4: Simplify right side
1,891,243,256.40x = 4,701,190,740,980,284,416 - Step 5: Solve for x
x = 4,701,190,740,980,284,416/1,891,243,256.40 - Step 6: Final answer
x = 2,485,767,351.75
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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.