Finding the Fourth Proportional to 91,030,540.42, 125,579,542.08 and 59,660,243.20
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Solution
The fourth proportional to 91,030,540.42, 125,579,542.08 and 59,660,243.20 is: 82,303,213.70
Step by Step Solution
- Step 1: Write the proportion equation
91,030,540.42 : 125,579,542.08 = 59,660,243.20 : x - Step 2: Convert to fraction form
91,030,540.42/125,579,542.08 = 59,660,243.20/x - Step 3: Cross multiply
91,030,540.42x = 125,579,542.08 × 59,660,243.20 - Step 4: Simplify right side
91,030,540.42x = 7,492,106,021,437,434 - Step 5: Solve for x
x = 7,492,106,021,437,434/91,030,540.42 - Step 6: Final answer
x = 82,303,213.70
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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.