Finding the Fourth Proportional to 36,445,853.38, 50,307,943.44 and 20,982,101.26
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Solution
The fourth proportional to 36,445,853.38, 50,307,943.44 and 20,982,101.26 is: 28,962,591.50
Step by Step Solution
- Step 1: Write the proportion equation
36,445,853.38 : 50,307,943.44 = 20,982,101.26 : x - Step 2: Convert to fraction form
36,445,853.38/50,307,943.44 = 20,982,101.26/x - Step 3: Cross multiply
36,445,853.38x = 50,307,943.44 × 20,982,101.26 - Step 4: Simplify right side
36,445,853.38x = 1,055,566,363,440,432.75 - Step 5: Solve for x
x = 1,055,566,363,440,432.75/36,445,853.38 - Step 6: Final answer
x = 28,962,591.50
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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.