Finding the Fourth Proportional to 92,768,589.91, 128,020,883.57 and 51,515,481.07
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Solution
The fourth proportional to 92,768,589.91, 128,020,883.57 and 51,515,481.07 is: 71,091,491.32
Step by Step Solution
- Step 1: Write the proportion equation
92,768,589.91 : 128,020,883.57 = 51,515,481.07 : x - Step 2: Convert to fraction form
92,768,589.91/128,020,883.57 = 51,515,481.07/x - Step 3: Cross multiply
92,768,589.91x = 128,020,883.57 × 51,515,481.07 - Step 4: Simplify right side
92,768,589.91x = 6,595,057,404,115,009 - Step 5: Solve for x
x = 6,595,057,404,115,009/92,768,589.91 - Step 6: Final answer
x = 71,091,491.32
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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.