Finding the Fourth Proportional to 29,181,128.80, 40,272,042.76 and 16,128,106.80
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Solution
The fourth proportional to 29,181,128.80, 40,272,042.76 and 16,128,106.80 is: 22,257,939.75
Step by Step Solution
- Step 1: Write the proportion equation
29,181,128.80 : 40,272,042.76 = 16,128,106.80 : x - Step 2: Convert to fraction form
29,181,128.80/40,272,042.76 = 16,128,106.80/x - Step 3: Cross multiply
29,181,128.80x = 40,272,042.76 × 16,128,106.80 - Step 4: Simplify right side
29,181,128.80x = 649,511,806,687,446.75 - Step 5: Solve for x
x = 649,511,806,687,446.75/29,181,128.80 - Step 6: Final answer
x = 22,257,939.75
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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.