Finding the Fourth Proportional to 878,242,893.09, 1,317,234,757.59 and 256,291,130.49
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Solution
The fourth proportional to 878,242,893.09, 1,317,234,757.59 and 256,291,130.49 is: 384,398,880.76
Step by Step Solution
- Step 1: Write the proportion equation
878,242,893.09 : 1,317,234,757.59 = 256,291,130.49 : x - Step 2: Convert to fraction form
878,242,893.09/1,317,234,757.59 = 256,291,130.49/x - Step 3: Cross multiply
878,242,893.09x = 1,317,234,757.59 × 256,291,130.49 - Step 4: Simplify right side
878,242,893.09x = 337,595,585,143,462,208 - Step 5: Solve for x
x = 337,595,585,143,462,208/878,242,893.09 - Step 6: Final answer
x = 384,398,880.76
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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.