Finding the Fourth Proportional to 72,732,197.95, 100,372,561.08 and 39,694,566.08
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Solution
The fourth proportional to 72,732,197.95, 100,372,561.08 and 39,694,566.08 is: 54,779,662.53
Step by Step Solution
- Step 1: Write the proportion equation
72,732,197.95 : 100,372,561.08 = 39,694,566.08 : x - Step 2: Convert to fraction form
72,732,197.95/100,372,561.08 = 39,694,566.08/x - Step 3: Cross multiply
72,732,197.95x = 100,372,561.08 × 39,694,566.08 - Step 4: Simplify right side
72,732,197.95x = 3,984,245,258,408,896 - Step 5: Solve for x
x = 3,984,245,258,408,896/72,732,197.95 - Step 6: Final answer
x = 54,779,662.53
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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.