Finding the Fourth Proportional to 872,438,128.14, 1,203,968,522.01 and 475,959,916.26
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Solution
The fourth proportional to 872,438,128.14, 1,203,968,522.01 and 475,959,916.26 is: 656,826,814.91
Step by Step Solution
- Step 1: Write the proportion equation
872,438,128.14 : 1,203,968,522.01 = 475,959,916.26 : x - Step 2: Convert to fraction form
872,438,128.14/1,203,968,522.01 = 475,959,916.26/x - Step 3: Cross multiply
872,438,128.14x = 1,203,968,522.01 × 475,959,916.26 - Step 4: Simplify right side
872,438,128.14x = 573,040,756,915,555,520 - Step 5: Solve for x
x = 573,040,756,915,555,520/872,438,128.14 - Step 6: Final answer
x = 656,826,814.91
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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.