Finding the Fourth Proportional to 37,138,331.28, 51,254,579.88 and 20,840,872.08
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Solution
The fourth proportional to 37,138,331.28, 51,254,579.88 and 20,840,872.08 is: 28,762,470.09
Step by Step Solution
- Step 1: Write the proportion equation
37,138,331.28 : 51,254,579.88 = 20,840,872.08 : x - Step 2: Convert to fraction form
37,138,331.28/51,254,579.88 = 20,840,872.08/x - Step 3: Cross multiply
37,138,331.28x = 51,254,579.88 × 20,840,872.08 - Step 4: Simplify right side
37,138,331.28x = 1,068,190,142,793,221.75 - Step 5: Solve for x
x = 1,068,190,142,793,221.75/37,138,331.28 - Step 6: Final answer
x = 28,762,470.09
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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.