Finding the Fourth Proportional to 75,814,738.97, 104,688,115.65 and 47,986,541.43
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Solution
The fourth proportional to 75,814,738.97, 104,688,115.65 and 47,986,541.43 is: 66,261,793.78
Step by Step Solution
- Step 1: Write the proportion equation
75,814,738.97 : 104,688,115.65 = 47,986,541.43 : x - Step 2: Convert to fraction form
75,814,738.97/104,688,115.65 = 47,986,541.43/x - Step 3: Cross multiply
75,814,738.97x = 104,688,115.65 × 47,986,541.43 - Step 4: Simplify right side
75,814,738.97x = 5,023,620,598,867,357 - Step 5: Solve for x
x = 5,023,620,598,867,357/75,814,738.97 - Step 6: Final answer
x = 66,261,793.78
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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.