Finding the Fourth Proportional to 29,181,129.30, 40,272,043.45 and 16,128,107.30
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Solution
The fourth proportional to 29,181,129.30, 40,272,043.45 and 16,128,107.30 is: 22,257,940.44
Step by Step Solution
- Step 1: Write the proportion equation
29,181,129.30 : 40,272,043.45 = 16,128,107.30 : x - Step 2: Convert to fraction form
29,181,129.30/40,272,043.45 = 16,128,107.30/x - Step 3: Cross multiply
29,181,129.30x = 40,272,043.45 × 16,128,107.30 - Step 4: Simplify right side
29,181,129.30x = 649,511,837,951,862.25 - Step 5: Solve for x
x = 649,511,837,951,862.25/29,181,129.30 - Step 6: Final answer
x = 22,257,940.44
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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.