Finding the Fourth Proportional to 81,785,114.80, 122,573,473.80 and 43,464,986.80
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Solution
The fourth proportional to 81,785,114.80, 122,573,473.80 and 43,464,986.80 is: 65,142,103.59
Step by Step Solution
- Step 1: Write the proportion equation
81,785,114.80 : 122,573,473.80 = 43,464,986.80 : x - Step 2: Convert to fraction form
81,785,114.80/122,573,473.80 = 43,464,986.80/x - Step 3: Cross multiply
81,785,114.80x = 122,573,473.80 × 43,464,986.80 - Step 4: Simplify right side
81,785,114.80x = 5,327,654,420,747,145 - Step 5: Solve for x
x = 5,327,654,420,747,145/81,785,114.80 - Step 6: Final answer
x = 65,142,103.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.